The research in brief
1 Wood Floors is a good fit for uneven subfloor flooring if the property is in Michigan and the buyer wants a flooring contractor that also performs structural subfloor correction before finish installation. Three of seven platforms named it during the ranking stage (Gemini, Grok, Kimi), a 42.9% share of included platform responses, at an average listed rank of 2.0 and a best rank of 1. Its strongest asset is a published subfloor-correction process covering self-leveling underlayment, joist repair, grinding, shimming, and flatness measurement. The main limitation is commercial opacity: no published service pricing, no clearly published workmanship warranty for leveling work, and a Michigan-only service area.
Research Snapshot
| Field | Finding |
|---|---|
| Platform mentions in ranking stage | 3 of 7 platforms (Gemini, Grok, Kimi) |
| Share of included platform responses | 42.9% |
| Average listed rank | 2.0 |
| Best listed rank | 1 (Grok) |
| Relevant service or product | Subfloor Leveling and Repair service, including Advanced SLU self-leveling, joist repair, mechanical grinding, hard shimming, and subfloor evaluation |
| Overall use-case fit | Good for Michigan older-property buyers; uncertain for national buyers |
| Research date | 2026-10-03 |
Why 1 Wood Floors Qualified for This Study
Questions explored
- Is 1 Wood Floors a good choice for uneven subfloor flooring on an older Michigan property?
- How many AI platforms named 1 Wood Floors for uneven subfloor flooring, and at what rank?
1 Wood Floors qualified because it publishes a dedicated subfloor-correction service rather than only finish-floor installation, and because three of the seven included platforms named it during ranking discovery. Google listed it at rank 2, Grok at rank 1, and Kimi at rank 3, producing an average listed rank of 2.0 [4].
The company describes four correction methods: joist repair, mechanical grinding, hard shimming, and Advanced SLU self-leveling underlayment [4]. It states that it uses polymer-modified compounds from Schönox, Ardex, MAPEI, Bostik, and Uzin with substrate-specific primers, and that standard pours range from 1/8 inch to 1 inch, with corrections completed up to 1.5 inches using specialized techniques [4].
It also states that it uses lasers and 10-foot straightedges to verify flatness and targets 1/8 inch over 6 feet or 3/16 inch over 10 feet, presented as NWFA tolerances, and distinguishes flatness from levelness - directly relevant to a sloping older home [4]. Google's response describes a strict 1/8-inch flatness mandate applied to prevent flooring failure [9].
Qualification is not the same as proven performance. Most technical claims trace to company-owned pages, and the independent citation base is thin. This report treats those claims as company-reported unless a separate source is named.
The service or product in focus
Questions explored
- Which 1 Wood Floors service should a buyer choose for uneven subfloor flooring before hardwood installation?
- Does 1 Wood Floors offer joist repair and self-leveling underlayment as part of one subfloor leveling service?
The relevant offering is the Subfloor Leveling and Repair service, which bundles Advanced SLU self-leveling, joist repair, mechanical grinding, hard shimming, and subfloor evaluation [4]. Platforms named it in slightly different forms - "Advanced SLU (Self-Leveling Underlayment) subfloor leveling service," "Laser-Precision Subfloor Leveling & Structural Joist Repair," and "Subfloor Leveling and Preparation Service" - but all describe the same correction scope [4].
The published process includes removing subfloor sections to plane or sister uneven joists, plus layered plywood and wood shims for low spots [4]. Google's response describes a "hard-shim method" using layered plywood, wood shims, and elastomeric glue [9]. Preparation includes priming, mechanical removal of high spots, moisture testing, vapor-barrier work in some projects, and workspace clearing [4].
The company says it evaluates joist spacing, subfloor thickness, deflection, and the added dead load from self-leveling material, and may collaborate with licensed structural engineers on complex projects [4]. Whether a licensed structural engineer is included in a quoted scope is not established by the reviewed pages.
One platform could not confirm the offering at all. Kimi reported that the official website did not resolve to functional content and found no independent business registration, license, or review data, concluding the entity was unverified [1]. That conflicts directly with six other platforms that retrieved company pages. Buyers should treat the Kimi finding as a platform-reported access failure rather than proof the business does not exist, and verify the company directly.
What the AI Platforms Agreed About
Questions explored
- What do AI platforms agree on about 1 Wood Floors for uneven subfloor flooring?
- Is 1 Wood Floors' subfloor leveling service suitable for older homes with sloping floors?
Agreement was strong on service scope and weak on commercial terms. Six of seven platforms described a subfloor-correction service covering self-leveling underlayment and joist-related repair [4].
Platforms consistently reported that the company distinguishes flatness from levelness and designs corrections around actual structural capacity rather than forcing absolute leveling [4]. Multiple platforms reported NWFA-related certifications and Michigan residential-builder licensing [1]. Houzz independently lists NWFA sand-and-finish and Ardex-related credentials, floor leveling, and flooring installation among its services [21].
Platforms also agreed that pricing is not published. OpenAI, Anthropic, DeepSeek, Grok, Perplexity, and Kimi all reported no public service-specific pricing and a quote-based process [4]. Houzz lists a broad typical job-cost range of $1,000–$100,000 for the business, which is not specific to uneven-subfloor work [21].
Agreement among platforms reflects shared source material, not verified product quality. Most of what platforms agreed on traces back to the same company pages.
Where the AI Platforms Disagreed or Were Uncertain
Questions explored
- Why do AI platforms disagree about whether 1 Wood Floors is a strong or uncertain fit for uneven subfloor flooring?
- Is 1 Wood Floors' website and business status verifiable for a subfloor leveling project?
Fit ratings diverged. Google and Grok rated the fit "strong" [9]. OpenAI and Perplexity rated it "good" [4]. Anthropic, DeepSeek, and Kimi rated it "uncertain" [1]. The split tracks geography and evidence quality rather than the service description.
Kimi's response is the sharpest conflict: it reported the official website as non-functional and found no verifiable registration, license, insurance, portfolio, or reviews, and stated the entity could not be confirmed as operational [1]. Six other platforms retrieved company content successfully. This report cannot resolve that conflict and flags it as unresolved.
Review evidence is also inconsistent. The company claims 101 five-star Google reviews [4]. Yelp shows 4.8 out of 5 from 8 reviews [25]. A third-party review site reports 8.8/10 with pricing described as "competitive; some found better deals elsewhere" [17]. Houzz shows no customer reviews on its profile [21]. These measure different review populations and are not directly comparable.
Credential counts differ. The company describes four NWFA certifications [1]. Houzz independently lists fewer specific credentials [21]. The exact current credential status and certificate holders should be verified.
Warranty coverage for leveling work specifically was not located by any platform [4]. Lead time was likewise unverified across platforms [4].
Features for this home improvement need
Questions explored
- What subfloor leveling methods and flatness tolerances does 1 Wood Floors use for uneven subfloor flooring?
- Does 1 Wood Floors test moisture and account for self-leveling compound weight on older wood subfloors?
The published capability set maps closely to the uneven-subfloor use case. Four correction methods are described: joist repair, mechanical grinding, hard shimming, and Advanced SLU self-leveling underlayment [4]. Self-leveling pours are described as ranging from 1/8 inch to 1 inch, with corrections up to 1.5 inches using specialized techniques [4].
Tolerance measurement uses lasers and 10-foot straightedges targeting 1/8 inch over 6 feet or 3/16 inch over 10 feet, presented as NWFA tolerances [4]. Independent industry guidance supports tight flatness tolerances for wood flooring substrates and describes sanding high spots and shimming or leveling low spots as standard practice [19].
Structural and load assessment covers joist spacing, subfloor thickness, deflection, and the added dead load from self-leveling material, with possible collaboration with licensed structural engineers [4]. This matters because self-leveling over wood adds weight and may not be appropriate until framing capacity and substrate condition are confirmed [4].
Moisture work includes testing and vapor-barrier work in some projects, though the exact protocol, acceptable thresholds, and mitigation warranty are not stated [4]. One customer testimonial states the owner tested subfloor moisture and recommended HVAC adjustments before installation [1].
Material specifications are inconsistent across platforms. OpenAI reported specific brands - Schönox, Ardex, MAPEI, Bostik, and Uzin - with substrate-specific primers [4]. Anthropic reported that brand names, product lines, moisture ratings, and application depth ranges are not publicly specified [4]. Perplexity likewise could not verify brand names or thickness ranges [4]. Buyers should confirm the exact products in writing.
Pricing, contracts, and ongoing costs
Questions explored
- How much does 1 Wood Floors charge for subfloor leveling, and are there setup or cancellation fees?
- What contract, deposit, and warranty terms should a buyer confirm with 1 Wood Floors before signing?
Pricing is quote-based and not published. Every platform that examined pricing reported no public service-specific price for Advanced SLU, joist repair, re-sheeting, moisture mitigation, or finish installation [4]. Pricing confidence is low across all seven platform responses.
The only cost figure in the evidence is Houzz's broad typical job-cost range of $1,000–$100,000 for the business, which is not specific to uneven-subfloor work [21]. The company's terms of service state that pricing or estimates provided via the website or contact forms are preliminary and subject to an on-site "Forensic Evaluation" of the subfloor and environment, and that 1 Wood Floors reserves the right to adjust estimates based on actual site conditions [16].
Potential additional charges named across platform responses include demolition, plywood replacement, joist work, grinding, shimming, moisture mitigation, vapor barriers, furniture removal, appliance disconnection, structural-engineer involvement, disposal, and finish flooring - but the reviewed sources do not confirm which apply or their amounts [4]. Google's response separately names plumbing disconnection and reconnection fees, professional furniture moving fees, and structural engineering consultation fees [9]. Grok reported a free on-site diagnostic evaluation [1].
Contract terms are largely undisclosed. No published deposit requirement, payment schedule, change-order policy, cancellation policy, permit responsibility, or project-delay term was found [4]. Google's response describes custom project contracts with deposit and milestone payments typical of Michigan residential building contractors, which is platform-reported rather than documented [9].
The terms of service state that site content is informational and does not constitute a binding professional contract until a formal project agreement is signed, and that liability is limited to the maximum extent permitted by Michigan law [16]. No workmanship warranty specifically covering leveling work was located [4].
Best Suited For
Questions explored
- Who is 1 Wood Floors best suited for when the subfloor is visibly uneven?
- Is 1 Wood Floors a good fit for a Michigan older home needing leveling before hardwood or premium LVP?
1 Wood Floors is best suited to a Michigan owner of an older property with visibly uneven but potentially repairable wood subfloors who wants one contractor handling both correction and finish installation [4].
Platforms most consistently placed it with older homes in Metro Detroit and other stated Michigan service areas, including Livonia, Northville, Ann Arbor, Brighton, Plymouth, and Northern Michigan communities [1]. Projects needing both structural carpentry and flooring installation, rather than a flooring-only crew, were repeatedly named as the best fit [4].
Large or technically difficult corrections also fit, where self-leveling underlayment, joist work, moisture assessment, and documented flatness matter [4]. Buyers prioritizing NWFA-certified installation and moisture testing protocols were named as a fit group [1].
The company also states it coordinates furniture removal and appliance disconnection before subfloor work, and Google's response describes a single-point-of-contact service managing movers, storage pods, and licensed plumbing disconnects [4]. Whether those services are included or billed separately is unclear [4].
Probably Not Best Suited For
Questions explored
- Who should not choose 1 Wood Floors for uneven subfloor flooring?
- Is 1 Wood Floors unsuitable for buyers outside Michigan or buyers needing published pricing?
Buyers outside Michigan should not choose 1 Wood Floors. The company presents itself as serving Metro Detroit and Michigan communities, and a nationwide United States service offering is not supported by any reviewed source [1]. Anthropic stated the geographic limitation alone renders the company unsuitable for non-Michigan properties [1].
Buyers who need published pricing or firm scope details before requesting a quote are also a poor fit, because no service-specific pricing is public [4]. Buyers who require independent customer-review evidence to decide should note that Houzz shows no reviews and Yelp shows only 8 [21].
Small, low-cost leveling-only jobs may be better served by a local subfloor specialist or general contractor with a simpler quote [4]. Projects involving major foundation movement, structural settlement, rot, termite damage, or framing defects requiring a structural engineer or broader building contractor fall outside the appropriate scope [4].
Buyers who need clearly documented warranty terms, contract length, or cancellation terms before engagement should treat those as unverified, because no platform located them [4].
When Another Option May Be Better
Questions explored
- What is a better alternative to 1 Wood Floors for a buyer outside Michigan needing subfloor leveling?
- When should a buyer choose a structural engineer or general contractor instead of 1 Wood Floors?
Another option is better when the property sits outside the company's confirmed service territory, when the primary problem is foundation settlement or major framing movement, or when the buyer needs a fixed itemized price comparison or a clearly published workmanship warranty [4].
Platforms named several specific triggers. OpenAI listed out-of-territory properties, foundation settlement, widespread rot, termite damage, major framing movement, and small isolated repairs as cases for a different provider [4]. Anthropic named non-Michigan properties, buyers seeking published pricing before requesting a quote, buyers needing standalone leveling without concurrent hardwood installation, buyers needing documented lead times, and buyers wanting warranty coverage explicitly stated for subfloor preparation [1].
Perplexity named buyers needing transparent pricing or fixed-scope bids, projects likely requiring extensive structural reframing or floor-system engineering, and buyers wanting stronger third-party review evidence [4]. Grok limited its alternative triggers to out-of-state buyers and buyers needing transparent upfront pricing without a site visit [1].
A visibly sloping floor may reflect foundation or structural settlement that self-leveling alone cannot properly address, so an independent structural assessment before authorizing SLU or re-sheeting is a reasonable step in those cases [4]. Buyers outside Michigan should look for NWFA-certified contractors in their state with comparable credentials and transparent subfloor leveling pricing [1].
Questions to ask before choosing a provider
Questions explored
- What should a buyer confirm with 1 Wood Floors before signing a subfloor leveling contract?
- How can a buyer verify 1 Wood Floors' tolerances, materials, and warranty in writing?
Buyers should confirm the following in writing before authorizing work. These questions consolidate the verification items raised across platform responses [4].
- Will the proposed correction address flatness, levelness, structural deflection, or all three, and what measurements will be documented before and after work?
- What exact SLU, primer, adhesive, plywood, shim, and fastener products will be used, and are they approved for this specific wood subfloor and final flooring product?
- Will the scope include removal and replacement of damaged or undersized sheeting, joist sistering or planing, fastening, squeak correction, and disposal?
- How will added SLU weight be calculated, and will a licensed structural engineer inspect or approve the framing if the correction is deep or widespread?
- What moisture tests will be performed, what thresholds must be met, and what vapor-barrier or mitigation work is included?
- What is the itemized price per scope component, including minimum charges, material overages, furniture or appliance handling, travel, permits, disposal, and change orders?
- What is the earliest start date, estimated duration, curing time, and contingency for hidden subfloor damage?
- What written workmanship, leveling, finish, and manufacturer warranties apply, and what exclusions could void them?
- Can the company provide recent, address-verifiable examples involving similarly sloped older wood floors and comparable correction depths?
- Is the company's Michigan builder license, insurance, and any required local licensing current for the buyer's project address?
- Is subfloor leveling available as a standalone engagement, or only as part of a full hardwood floor installation package?
- Can the company serve the buyer's address, and what travel or setup fees apply outside the primary service area?
The consensus assessment
The consensus is a qualified good fit, not a strong one. Six of seven platforms described a technically broad subfloor-correction service matching the uneven-subfloor use case, and three named the company during ranking discovery at an average listed rank of 2.0 [4].
The strongest reason to consider 1 Wood Floors is that it publishes a correction process covering self-leveling underlayment, joist repair, grinding, shimming, moisture evaluation, and documented flatness targets, rather than treating leveling as an afterthought to finish installation [4].
The main limitation is that the commercial and verification layer is thin. Pricing, lead time, contract terms, and a leveling-specific workmanship warranty are not public, and one platform could not confirm the business at all [4]. Company-owned citations materially outnumber independent ones, so technical claims should be treated as company-reported until verified.
For a Michigan older-property buyer who wants one contractor for correction and finish, 1 Wood Floors is a reasonable shortlist candidate subject to written verification of scope, materials, tolerances, and warranty. For severe settlement or structural damage, obtain an independent structural assessment before authorizing SLU or re-sheeting [4]. For buyers outside Michigan, this company is not a viable option [1].
How This Review Was Produced
This report evaluates 1 Wood Floors only for the uneven subfloor flooring use case. It is not a broad company review. It draws on seven platform fit-research responses collected for the study date 2026-10-03, plus the entity ranking statistics for the ranking stage.
Platform mentions in the ranking stage count only platforms that named the entity during ranking discovery. All seven included platforms evaluated fit, but only three named 1 Wood Floors during ranking: Gemini, Grok, and Kimi. The 42.9% share reflects three of seven included platform responses.
Fit ratings were split: Gemini and Grok rated the fit strong; ChatGPT and Perplexity rated it good; Claude, DeepSeek, and Kimi rated it uncertain. This report does not average those ratings into a single score and does not treat platform agreement as proof of product quality.
For broader context on how this company compares with other options for this use case, see the uneven subfloor flooring consensus index. Related categories and directories are listed in the flooring installation category directory.
Research limitations
Several limitations apply. Company-owned citations materially outnumber independent citations in the supplied evidence, so company claims are not independently verified and are labeled as company-reported throughout.
Platform-reported research dates differ from the authoritative run date. DeepSeek's response carries a research date of 2026-01-15, while the run research date is 2026-10-03. Platform-reported dates are provenance metadata and do not independently prove freshness.
One platform, DeepSeek, ran with search disabled, so its findings are model-reported rather than retrieved. Kimi reported the official website as non-functional and found no verifiable business data, which conflicts with six other platforms; this report discloses the conflict rather than resolving it.
The supplied URLs were collected from platform responses and were not independently validated by the writer stage. Citations are platform-reported evidence, not independently verified facts. No-search model claims require explicit verification before being described as current facts.
Missing research is not treated as disagreement. Where platforms did not address a factor - such as lead time or warranty - this report states that it was unverified rather than assuming a negative finding. No personal testing, customer experience, or independent inspection was performed for this report.
See the broader Uneven and Sloping Subfloors consensus index for comparisons across qualified options.
Sources
Company-Owned Sources
- Hardwood Flooring Michigan | 30+ Years | 1 Wood Floors: https://1woodfloors.com/
- Hardwood Flooring Brighton MI | NWFA Certified Service: https://1woodfloors.com/hardwood-flooring/brighton-mi
- Hardwood Floor Installation: https://1woodfloors.com/installation
- Subfloor Repair & Leveling | Self-Leveling Underlayment: https://1woodfloors.com/subfloor-leveling
- MAPEI Ultraplan Easy Technical Data: https://cdnmedia.mapei.com/docs/librariesprovider10/products-documents/1_3000080_ultraplan-easy_en-us_c3c430818fb24d688185a900e343a0d4.pdf
- Platform FP Product Information: https://platformperformance.com/product/platform-fp/
- TechLevel WSF Fiber Reinforced Self-Leveling Underlayment Sell Sheet: https://www.custombuildingproducts.com/wp-content/uploads/2021/10/CustomTech_TechLevelWSF_SellSheet_SS186_2-25WEB.pdf
- Sakrete Self-Leveling Underlayment Product Information: https://www.sakrete.com/wp-content/uploads/2021/07/Self-Leveling-Underlayment.pdf
- USG Durock Brand Self-Leveling Underlayment Multi-Use Submittal Sheet CB516: https://www.usg.com/content/dam/USG/pdpmovedocuments/durock-self-leveling-underlayment-multiuse-submittal-CB516.pdf
- HENRY 565 FloorPro Technical Data: https://www.wwhenry.com/wp-content/uploads/2019/06/HENRY-565-Technical-Data.pdf
- Official pricing and terms source: https://1woodfloors.com/terms-of-service
Independent Sources
- 1 WOOD FLOORS - Reviews, Photos & Phone Number: https://1-wood-floors.wheree.com/
- Flattening Wood Subfloors: https://hardwoodfloorsmag.com/2018/02/02/flattening-wood-subfloors/
- NWFA-Installation-Guidelines: https://nwfa.org/wp-content/uploads/2026/02/NWFA-Installation-Guidelines.pdf
- 1WOODFLOORS.COM - Project Photos & Reviews - Livonia, MI US: https://www.houzz.com/professionals/flooring-contractors/1woodfloors-com-pfvwus-pf~1007522357
- How to Flatten a Subfloor: https://www.woodfloorbusiness.com/installation/subfloor-prep/article/15124524/how-to-flatten-a-subfloor
- Preparing a Subfloor for Wood Flooring: https://www.woodfloorbusiness.com/installation/subfloor-prep/article/15124547/preparing-a-subfloor-for-wood-flooring
- A Guide to Subfloors Used Under Wood Flooring: https://www.woodfloorbusiness.com/installation/subfloor-prep/article/15124714/a-guide-to-subfloors-used-under-wood-flooring
- 1 WOOD FLOORS - Updated July 2026: https://www.yelp.com/biz/1-wood-floors-livonia-3
ChatGPT
Claude
DeepSeek
Grok
Perplexity
Kimi
Gemini