Grandeur Hills Group Review for Luxury Primary Bathroom Renovations

The research in brief

Grandeur Hills Group is a good, but not fully verified, fit for a luxury primary bathroom in the New York City area. Two of the seven platforms in this study named it during the ranking stage, at an average listed rank of 1.5 and a best rank of 1. Its strongest case is a single-firm design-build model that publicly advertises book-matched stone, full waterproofing, custom vanities, spa-grade fixtures, and NYC co-op/condo permitting coordination. The main limitation is verification: custom glass fabrication, waterproofing specifications, workmanship warranty terms, and luxury-bathroom pricing are not publicly documented, and the firm serves only the New York region.

Research Snapshot

Why Grandeur Hills Group Qualified for This Study

Questions explored

• Is Grandeur Hills Group a good choice for a luxury primary bathroom renovation in New York City?
• How many AI platforms named Grandeur Hills Group for luxury primary bathroom remodeling?

Grandeur Hills Group qualified because it was named during the ranking stage by two of the seven platforms in this study, DeepSeek and Kimi, at an average listed rank of 1.5 and a best rank of 1 ^[4]. That is a 28.6% share of included platform responses, which is a limited mention base rather than broad consensus.

The firm's stated service scope is the reason it appeared at all. It publicly markets a Luxury bathroom remodeling service that names stone, tile and surfaces, custom vanities, and fixtures and systems, and it positions itself as a luxury design-build contractor serving New York City ^[4]. For a buyer building a spa-style primary suite with a freestanding tub, large-format stone, and custom glass, that scope description maps directly onto the use case.

Qualification is not the same as proof. Most of the accessible evidence is company-published, and the platforms themselves flagged that independent verification of large-format stone work, custom glass, waterproofing quality, timelines, and warranty terms was not found in the sources they checked ^[4]. This review treats the firm as a shortlist candidate requiring direct due diligence, not as a proven luxury primary bathroom specialist.

The service or product in focus

Questions explored

• Which Grandeur Hills Group service should a buyer choose for a full-scope luxury primary suite renovation?
• Does Grandeur Hills Group's Luxury Bathroom Remodeling service include stone, vanities, and fixtures in one contract?

The relevant offering is the firm's Luxury Bathroom Remodeling service, described across platforms as a full-scope primary suite renovation covering stone, tile and surfaces, custom vanities, and fixtures and systems ^[4]. Google's platform output labeled the same offering "Spa-Grade Sanctuaries" bathroom remodeling, and Grok described it as spa-grade primary suites with stone, tile, and custom millwork ^[4].

Company materials describe the service as including full waterproofing, book-matched stone, custom vanities, radiant heat, and spa-grade fixtures, delivered with complete plumbing permits ^[8]. The firm also states that it accepts bathroom-only remodels as well as targeted custom millwork commissions, which matters if the buyer wants the primary bath handled as a discrete project rather than part of a whole-home renovation ^[8].

The delivery model is design-build. Company pages state that architecture, interior design, and construction are delivered by one accountable team under one contract, which the firm says eliminates the hand-off gap between designer and contractor ^[8]. Google's platform output described the same structure as a single-point design-build approach with design integrated into cost accounting ^[4].

One scope question is unresolved. The reviewed public pages do not establish whether the bathroom service includes architecture, interior design, fixture procurement, glass procurement, or specialty waterproofing as standard scope or as separately priced options ^[4]. Buyers should treat the scope boundary as a contract question, not a marketing claim.

What the AI Platforms Agreed About

Questions explored

• What do AI platforms agree Grandeur Hills Group does well for luxury primary bathroom projects?
• Is Grandeur Hills Group's review strength consistent across platforms for bathroom remodeling?

Platform agreement centers on four points: service relevance, review strength, design-build structure, and geographic concentration.

On service relevance, the platforms converged. Multiple platform outputs describe a publicly advertised luxury bathroom remodeling service naming stone, tile, custom vanities, and fixtures, and several cite company language about spa-grade primary suites and waterproofing ^[4]. This is a strong agreement on stated scope, though the underlying evidence is largely company-owned.

On review strength, the platforms broadly agreed that public ratings are high, but the counts differ. Houzz shows a 5.0 rating from 55 reviews ^[19]. RemodelMate lists 5.0 stars from 32 client reviews in bathroom remodeling ^[21]. ServiceAgent lists a 5.0 Google rating from 37 reviews ^[10]. TrustAnalytica reports a 4.9 rating from 40-plus reviews ^[11]. The company's own site reports 5.0 ratings on Google and Houzz totaling 94 reviews ^[4].

On design-build structure, the platforms agreed that a single accountable team handling design and construction reduces coordination risk on a complex primary-suite renovation ^[4]. This is a structural claim about project delivery, not evidence of finished quality.

On geography, the platforms unanimously described a New York-region footprint. Company pages state service across Manhattan, Brooklyn, Queens, the Bronx, Staten Island, Westchester, Long Island, and the Hamptons ^[5]. No platform described national coverage.

Where the AI Platforms Disagreed or Were Uncertain

Questions explored

• Why do AI platforms disagree about Grandeur Hills Group's fit rating for luxury primary bathroom?
• What is unverified about Grandeur Hills Group's custom glass and waterproofing capabilities?

Fit ratings diverged across the seven platforms: Gemini rated the firm strong, Claude, Grok, ChatGPT, and Perplexity rated it good, DeepSeek rated it mixed, and Kimi rated it uncertain. That spread is the single most important finding in this study. It reflects differences in how much weight each platform placed on company-published evidence versus independently verifiable capability.

Custom glass is the clearest unresolved item. The reviewed public pages do not clearly state that Grandeur Hills Group fabricates custom shower glass in-house or identify a named glass-fabrication partner ^[4]. Deepseek reported that whether custom glass is fabricated in-house or subcontracted is unclear from the sources checked ^[4]. Perplexity found no verified public source showing in-house custom glass fabrication or a named glass subcontractor ^[4]. Kimi reported that custom glass fabrication for frameless wet-room enclosures is unconfirmed ^[4].

Waterproofing and tiling quality is a second gap. Company materials state that bathrooms are waterproofed to last and wrapped in honed stone ^[8]. Independent reviews describe high-quality bathroom work and craftsmanship ^[19]. However, the reviewed sources do not identify the waterproofing manufacturer, shower-pan method, wet-area testing protocol, tile substrate, movement-joint requirements, or installation standard ^[19]. Technical quality should be verified directly rather than inferred from ratings.

Workmanship warranty terms are a third gap. No clear workmanship-warranty duration, coverage, exclusions, claims process, or post-completion service terms were found on the reviewed public pages ^[4]. Kimi noted that the company states a workmanship guarantee but does not detail duration, coverage scope, or exclusions ^[4].

Pricing conflicts are unresolved. One directory lists a complete bathroom remodel at $10,000–$20,000, custom vanities at $1,000–$5,000, and fixture installation at $400–$1,500 per fixture ^[11]. Houzz lists a typical job cost range of $100,000–$3,000,000 ^[19]. These figures are not reconcilable from the supplied evidence, and the lower range likely reflects partial or cosmetic scopes rather than a full luxury primary suite.

Founding date is also contested. The company website states it was founded in 2019 ^[5], while BuildZoom and Yelp sources reference 2010 and 2014 respectively ^[15]. The conflict is not resolved in the supplied evidence.

Review platform variance exists as well. Yelp shows a 3.0 rating from 2 reviews, which conflicts with the 5.0 Houzz profile, though the Yelp sample is too small to be reliable ^[23].

Features for this home improvement need

Questions explored

• Does Grandeur Hills Group handle large-format stone and freestanding tub installation for a spa-style primary suite?
• Can Grandeur Hills Group manage co-op or condo board approvals for a New York primary bathroom renovation?

Large-format stone work is a stated advantage with a documentation gap. The company explicitly describes book-matched stone and full waterproofing as core bathroom offerings ^[8]. A Houzz project comment references a specific stone material, Motor City Circles Bianco Dolomiti Polished Mosaic, at $48.75 per square foot, which indicates detailed sourcing ^[19]. What is missing is documentation of a specific large-format bathroom slab installation, slab thickness, edge treatment, or stone-fabrication process ^[4].

Freestanding tub installation has portfolio support. A Houzz project titled Central Park Luxury Apartment is documented as including a freestanding bathtub design ^[16]. A client comment on Houzz states "I love the free standing tub in the shower area," with a company response confirming space and installation feasibility ^[19].

Fixture sourcing is in scope but unspecified. The company lists spa-grade fixtures as an included service, and reviews describe assistance with construction materials and fixtures ^[8]. Specific brands, procurement terms, allowances, lead-time management, and responsibility for defective fixtures are not publicly specified ^[4]. Kimi reported no verified partnerships with luxury fixture brands documented in the sources checked ^[4].

Project management and permitting is a documented strength. The company states that it manages design, construction, permitting, inspections, co-op and condo requirements, and a single point of accountability ^[4]. It also states experience with board approval packages, house rules, elevator protection, work hours, and building engineer sign-offs ^[8]. BuildZoom records show 24 building permits with a $2,441,200 valuation, and a recent permit shows $83,628 for a bathroom and kitchen renovation project ^[15].

Licensing has partial independent support. Houzz lists DCA License Number 2089009-DCA ^[19]. BuildZoom records list General Contractor, Home Improvement Contractor, and Renovation licenses 621133, 2089009-DCA, and NAT-F215538-1 ^[15]. BuildZoom also reports a score of 108, placing the firm in the 95th percentile for quality among 77,888 New York contractors ^[15]. The company states it is fully licensed and insured with NKBA Remodeling Specialist credentials, EPA Lead-Safe certification, BBB accreditation, and ISO 9001:2015 certification, but the reviewed sources did not independently verify each license, certification, insurance limit, or current standing ^[4].

Timeline reliability is favorable but not contractual. Houzz reviews include customer reports of projects completed on time or according to schedule, and independent review aggregation states that most bathroom and kitchen renovation projects were completed on time and within budget ^[19]. No published timeline standard, service-level agreement, or delay penalty clause was found ^[8].

Pricing, contracts, and ongoing costs

Questions explored

• How much does a Grandeur Hills Group luxury primary bathroom renovation cost, and is any price publicly listed?
• What deposit, payment milestone, and cancellation terms should a buyer confirm with Grandeur Hills Group before signing?

Pricing is not publicly stated for the recommended bathroom service. The company says pricing depends on scope, finishes, and location and that itemized proposals are provided during the design phase ^[4]. The initial consultation is described by the company as complimentary for qualified projects ^[4].

The available cost figures conflict and should be treated cautiously. Directory listings cite $10,000–$20,000 for a complete bathroom remodel, $1,000–$5,000 for custom vanities, and $400–$1,500 per fixture for installation ^[11]. Houzz lists a typical job cost range of $100,000–$3,000,000 ^[19]. Google's platform output stated that the firm typically manages renovations exceeding $200,000, but that figure is platform-reported and not corroborated by the other sources ^[4]. Kimi reported that no specific pricing for the luxury primary suite tier is published and that industry benchmarks for spa-tier bathrooms likely exceed $235,000 given local labor and material costs, citing third-party cost journalism rather than the firm ^[9].

Additional costs are not publicly itemized. Potential costs for permits, design, premium stone, custom millwork, fixtures, glass, freight, storage, change orders, building requirements, and concealed conditions are not publicly itemized ^[4]. Kimi flagged that design-build firms often embed design cost in product margin rather than charging a separate fee, and that fixture and material markups in this model are typically unquantified ^[14].

Contract terms are largely undisclosed. Publicly reviewed pages do not state deposit requirements, payment milestones, cancellation rights, change-order rules, procurement ownership, delay provisions, or completion guarantees ^[4]. Google's platform output described a single point of contact design-build contract with payments structured in milestones tied to project progression phases, but that description is platform-reported and not confirmed by a sample contract ^[4].

Pricing confidence across platforms was uniformly low. Buyers should expect a custom estimate rather than a published package price, and should request a sample itemized estimate with allowance schedules and exclusions before committing.

Best Suited For

Questions explored

• Who is Grandeur Hills Group best suited for in a luxury primary bathroom renovation?
• Is Grandeur Hills Group a good fit for a Manhattan or Brooklyn co-op primary suite project?

Grandeur Hills Group is best suited to New York-area owners of high-value homes who want one accountable design-build firm for a full-scope primary-suite renovation. The platforms consistently described this buyer profile: NYC or nearby luxury homeowners seeking a single firm for design, construction, material selection, and coordination ^[4].

It also fits projects with substantial demolition, plumbing, permitting, co-op or condo coordination, custom millwork, and premium stone finishes ^[4]. Buyers who value a highly reviewed general contractor and want architecture, interior design, and construction under one roof are the intended audience ^[4].

Buyers who prioritize a documented spa-grade aesthetic should note the portfolio evidence: book-matched stone, honed stone, custom vanities, radiant heat, and a documented freestanding tub installation ^[8]. Buyers who will independently verify licenses, insurance, warranty language, and stone and glass subcontractor quality before signing are also a reasonable fit, because that verification is necessary here ^[4].

Probably Not Best Suited For

Questions explored

• Who should not choose Grandeur Hills Group for a luxury primary bathroom project?
• Is Grandeur Hills Group suitable for a buyer outside the New York tri-state area?

Buyers outside the firm's stated service area should not choose it. The company states it serves New York City, Westchester, Long Island, and the Hamptons, which makes it a strong geographic fit for a New York-area buyer but not a general United States-wide option ^[4].

Buyers who require independently verified specialist credentials for large-format slab installation, waterproofing systems, or custom glass fabrication are also a poor fit on the current public record ^[4]. The same applies to buyers who need a publicly stated fixed price, a published schedule commitment, or a written workmanship warranty before selecting a contractor ^[4].

Buyers unwilling to commit to luxury-tier pricing should look elsewhere. Houzz lists a typical job cost range of $100,000–$3,000,000, and the firm describes itself as focused on high-end, luxury-tier projects ^[19]. Buyers requiring pre-sale warranty documentation before contract signature are also not well served by the current public disclosures ^[8].

When Another Option May Be Better

Questions explored

• When is a specialist stone or glass firm a better choice than Grandeur Hills Group for a luxury primary bathroom?
• What alternative should a buyer outside New York consider instead of Grandeur Hills Group?

A specialist luxury bathroom contractor or tile-and-stone firm may be better when waterproofing, slab fabrication, complex shower geometry, or stone installation is the dominant project risk ^[4]. A firm with a published workmanship warranty and a sample contract may be better when warranty enforceability and post-completion obligations are decisive ^[4].

A local contractor with extensive verified portfolio evidence in the buyer's state may be better when the project is outside the New York service region ^[4]. A contractor with transparent published allowances, a fixed-price structure, and documented procurement policies may be better when budget certainty matters more than full design-build scope ^[4].

Kimi's platform output suggested that buyers requiring documented spa-tier execution with wet-room, steam integration, and smart fixtures before engagement should consider specialist firms with verifiable high-value bathroom completions, and that buyers prioritizing fixture pricing transparency may prefer an independent designer plus contractor model ^[9]. Those are platform-reported comparisons against third-party benchmarks, not verified claims about Grandeur Hills Group.

Questions to ask before choosing a provider

Questions explored

• What should a buyer confirm with Grandeur Hills Group before signing a luxury primary bathroom contract?
• Can Grandeur Hills Group provide references for comparable luxury primary suite projects?

The platforms converged on a similar verification list. Buyers should ask for two or three recent luxury primary-bathroom references with large-format stone, a freestanding tub, and custom glass ^[4]. They should confirm who fabricates and installs the shower glass, and whether shop drawings, field measurements, tempered or laminated specifications, and warranty terms are included ^[4].

Buyers should ask which waterproofing and shower-system products will be used, and whether photographic documentation, flood testing, and manufacturer warranty documents will be provided ^[4]. They should confirm who performs large-format slab handling, cutting, book-matching, edge finishing, and installation ^[4].

Buyers should ask which fixture brands and showrooms are available, who owns procurement, and how shortages, defects, substitutions, freight, and returns are handled ^[4]. They should confirm whether the proposal is fixed-price, cost-plus, or hybrid, and whether it includes allowances for stone, tile, fixtures, glass, lighting, and accessories ^[4].

Buyers should ask for deposit, payment milestone, retainage, change-order, cancellation, and concealed-condition terms, and for the expected design, permitting, procurement, construction, and punch-list schedule with the events that can extend it ^[4]. They should request the written workmanship warranty for waterproofing, tile, stone, cabinetry, plumbing installation, and glass, plus a sample itemized estimate and contract with exclusions and allowance schedules ^[4].

Finally, buyers should request current proof of licensing, insurance, and relevant trade-subcontractor qualifications, and should ask the firm to reconcile its stated founding date, given the conflict between the 2019 website claim and the 2010 and 2014 references in third-party directories ^[4].

The consensus assessment

Grandeur Hills Group is a good fit with meaningful verification requirements for a luxury primary bathroom in the New York City area. It was named by two of seven platforms during the ranking stage, at an average listed rank of 1.5 and a best rank of 1, and it is credible for a New York luxury primary-bathroom renovation requiring broad design-build coordination, premium finishes, permitting, and custom millwork ^[4].

It should remain on the shortlist, but the buyer should not select it solely on public marketing or review strength. The platforms disagreed on fit rating, ranging from strong to uncertain, and the public record does not verify custom glass responsibility, waterproofing and large-format stone methods, detailed pricing, schedule controls, or a written workmanship warranty ^[4].

The practical path is to use this review as a due-diligence checklist. If the firm documents glass sourcing, waterproofing systems, itemized pricing, schedule controls, and warranty terms in writing, the fit improves materially. If it cannot, a specialist stone or glass firm or a contractor with published warranty and pricing terms may be the better choice for this use case.

How This Review Was Produced

This review was produced from platform-reported research collected for the 2026-10-02 study date. Seven platforms evaluated Grandeur Hills Group for the luxury primary bathroom use case: ChatGPT, Claude, DeepSeek, Grok, Perplexity, Kimi, and Gemini. Each platform returned a fit assessment, use-case findings, pricing and terms notes, verification questions, and citations.

Only two of the seven platforms, DeepSeek and Kimi, named Grandeur Hills Group during the ranking stage, which is why the platform mention count is 2 and the platform share is 28.6%. The remaining platforms evaluated fit but did not name the entity in ranking discovery. All included platforms evaluated fit, but platform_mentions counts only platforms that named the entity during ranking discovery.

Citations in this article are platform-reported evidence, not independently verified facts. Company-owned sources are labeled as owned, and independent directories, review platforms, and journalism are labeled as independent. Where a platform supplied no citation for a factual claim, the claim is described as platform-reported or unverified.

Research limitations

Several limitations apply. The supplied URLs were collected from platform responses and were not independently validated by the writer stage. Platform-reported research dates differ from the authoritative run date: DeepSeek reported a research date of 2026-06-11, while the other platforms reported 2026-10-02. Platform-reported dates are provenance metadata and do not independently prove freshness.

Deepseek's research ran with search disabled, so its findings rest on model knowledge and company-published material rather than retrieved independent evidence. No-search model claims require explicit verification before being described as current facts.

Conflicting product names, pricing, and capabilities were not resolved by guessing. The founding date conflict, the bathroom remodel price range conflict, and the review count differences are described as conflicts, and buyers are directed to verify them directly. Missing research was not interpreted as disagreement; where platforms found no evidence, this review says so rather than treating absence as a negative finding.

Platform agreement does not prove product quality. The consensus described here reflects what the platforms reported, not an independent audit of the firm's work.

Sources

Company-Owned Sources

1. Luxury En Suite Bathroom Renovations GTA | RenoEthics: https://renoethics.com/residential-renovations/bathroom-renovations/ensuite-bathroom/
2. Grandeur Hills Group - Apartment Renovation NYC: https://sites.google.com/view/grandeur-hills-group/home
3. Bain Ultra Monarch 7236 Product Sheet: https://www.bainultra.com/sites/default/files/product_files/BU_product_sheet_Monarch_7236_Eng_2026-01-01.pdf
4. Luxury General Contractor NYC | Grandeur Hills Group: https://www.grandeurhillsgroup.com/
5. About Us - NYC's Family-Owned Luxury Contractor: https://www.grandeurhillsgroup.com/about
6. Upper East Side Project - Upper East Side, NY: https://www.grandeurhillsgroup.com/portfolio/upper-east-side-project
7. Reviews: https://www.grandeurhillsgroup.com/reviews
8. Construction & Design Services in NYC - Grandeur Hills Group: https://www.grandeurhillsgroup.com/services

Independent Sources

9. Primary Suite Bathroom Renovation Cost for Scottsdale Luxury Homes (2026: https://eliteconciergeaz.com/journal/primary-suite-bathroom-renovation-cost-scottsdale-luxury-homes-2026/
10. Grandeur Hills Group - ServiceAgent: https://serviceagent.ai/directory/new-york/new-york/construction/grandeur-hills-group-general-contractor-nyc/
11. TrustAnalytica - Grandeur Hills Group Reviews: https://trustanalytica.org/us/ny/new-york/reviews/grandeur-hills-group-general-contractor
12. TOTO Neorest NX1 Luxury Integrated Smart Toilet Review : Specs, Price & Verdict (2026) | WaterClue: https://waterclue.com/toilet/toto/neorest-nx1-luxury-integrated-smart-toilet
13. Grandeur Hills Group, Inc. | BBB Business Profile: https://www.bbb.org/us/ny/new-york/profile/residential-general-contractor/grandeur-hills-group-inc-0121-87146180
14. How Much Does a Luxury Bathroom Cost in 2026? | Bowmans: https://www.bowmanbathrooms.co.uk/inspiration/design/luxury-bathroom-cost-uk/
15. Grandeur Hills Group - BuildZoom: https://www.buildzoom.com/contractor/grandeur-hills-group
16. Central Park Luxury Apartment - Modern - Bathroom - New York - by Grandeur Hills Group: https://www.houzz.com/photos/central-park-luxury-apartment-modern-bathroom-new-york-phvw-vp~140644237
17. Grandeur Hills Group on Houzz: https://www.houzz.com/professionals/general-contractor/grandeur-hills-group-pfvwus-pf~1546158617
18. Best 15 General Contractors in New York, NY - Houzz: https://www.houzz.com/professionals/general-contractor/new-york-city-ny-us-probr0-bo~t_11786~r_5128581
19. Grandeur Hills Group, Inc. - Project Photos & Reviews: https://www.houzz.com/professionals/general-contractors/grandeur-hills-group-inc-pfvwus-pf~632629213
20. Grandeur Hills Group - Popular Business Directory: https://www.popularbusinessdirectory.com/business/grandeur-hills-group-new-york-ny
21. Grandeur Hills Group - RemodelMate: https://www.remodelmate.com/listing/grandeur-hills-group-general-contractor-ny-kitchen-bath-remodeling/
22. Grandeur Hills Group Reviews 2026: https://www.trustindex.io/reviews/grandeurhillsgroup.com
23. Grandeur Hills Group - Yelp: https://www.yelp.com/biz/grandeur-hills-group-new-york-3