In this article
The strongest Angi alternatives for windows and doors contractors are theBuildd for one-buyer residential opt-ins; Modernize for broad documented scale; 99 Calls for managed window-specific acquisition; Inquir and 33 Mile Radius for exclusive delivery; and Google Local Services Ads for direct search demand. None proves useful volume in your ZIP codes.
Disclosure: theBuildd publishes this comparison and sells exclusive residential windows and doors leads. We rank theBuildd first on one-buyer delivery, public pricing and optional monthly dispatching. Modernize and 99 Calls publish stronger platform-scale signals, and we say so plainly. We have not bought or tested competitors’ services.
How we compared these Angi alternatives
We checked provider-owned contractor pages, consumer pages, pricing pages, help documents and terms on 20 August 2026. An alternative qualified for the shortlist only when it published a windows or doors scope and a repeatable acquisition model. We compared lead ownership, qualification, delivery, targeting, public pricing or terms, scale evidence, invalid-lead remedy and replacement-versus-repair fit.
First-party pages were accepted as evidence of what each provider says it offers, not as proof that one offer performs better. National platform totals counted as acquisition capacity, not local supply. A regulatory claim required a regulator’s record plus the named company’s response. When public evidence did not establish local volume, a window-only count or a price, we marked it unknown instead of estimating it.
The trade-scoped shortlist, ranked
A real Angi windows and doors alternative must cover the work, not merely list “home improvement” on a sales page. It also needs a repeatable acquisition system, documented distribution rules and enough targeting control to separate whole-home replacement from a broken pane or single-door repair.
| Rank | Alternative | Published windows and doors scope | Published scale signal | Delivery model | Main trade-off |
|---|---|---|---|---|---|
| 1 | theBuildd (publisher) | Agreed residential window and door projects | No guaranteed volume or specialty mix | One buyer through theBuildd; buyer handles intake unless a monthly plan adds dispatching | Coverage and project mix must be agreed; no commercial focus or cash remedy |
| 2 | Modernize | Dedicated replacement-window program; doors also appear in its published affiliate inventory | More than 2 million homeowners qualified annually across all trades | Standard leads, inbound calls and prequalified live transfers; standard matches may include up to four contractors | The big number is not a windows-only or local count; standard leads can preserve competition |
| 3 | 99 Calls | Replacement, installation, repair, storm windows and sliding-door replacement | More than 1.4 million leads generated across its business | Managed SEO, Google Ads and Local Services Ads; published one-company delivery | It is a managed acquisition system, not an instant marketplace swap; door scope is narrower than its window scope |
| 4 | Inquir | Window and door replacement or repair, including quantity and timing fields | Nationwide delivery and published enterprise scaling support, but no public trade count | Exclusive form leads from an owned consumer site, filtered by ZIP and delivered in real time | Digital contact verification is not the same as a phone conversation about project intent |
| 5 | Google Local Services Ads | Window repair category can include installation, doors, skylights and other glass | National product with local eligibility; no useful ZIP-level count published | Calls, messages and bookings from search; contractor controls services and area | Category fit, verification, reviews, budget, screening and follow-up stay with the contractor |
| 6 | 33 Mile Radius | Replacement windows, vinyl windows, whole-home replacement, doors and storm windows | More than 20,000 leads yearly across its entire partner network | Exclusive live phone calls billed under valid-lead rules | No public window-only local count; the live validity copy needs written clarification |
This ranking gives the greatest weight to provider-created competition and screening work, which is why theBuildd leads. A buyer weighting published national scale above exclusivity should place Modernize or 99 Calls first. The broader Angi alternatives comparison covers vendors without this trade filter.
Volume evidence separates a replacement from a supplement
“At volume” should mean more than a nationwide map. It requires two proofs: the vendor runs a repeated acquisition system for window or door projects, and it can show recent supply for the job types and ZIP codes the contractor actually accepts.
No public page can establish the second proof. Modernize says it qualifies more than 40,000 homeowners weekly and more than 2 million annually, but those are company-wide figures. Its dedicated windows program proves trade coverage, not the number of replacement-window opportunities available in one market.
99 Calls displays more than 1.4 million leads generated across its business and runs a specific window-installation offer. Its scope includes sliding-door replacement, but the page is far deeper on windows than entry, patio or interior doors. A door-heavy contractor should not import window capacity into a different service line.
theBuildd does not promise a weekly count, window-versus-door mix or per-ZIP supply. Check the current windows and doors coverage and put the accepted projects, trade, ZIP codes and handoff into the order before treating the plan as an Angi replacement.
A platform-wide volume claim proves that the machinery exists. Only recent supply by project type and ZIP code shows whether it can replace your Angi calendar.
Angi covers the trade, but its terms preserve competition
Angi clearly covers window and door work. Its current national contractor page includes new windows by quantity, exterior-door installation or replacement, screens, repairs and related projects. The page checked for this review offered to match the homeowner with up to three pros; current city pages can display up to five.
That consumer-facing range is consistent with the current Angi Pro Agreement. Version 1.4, effective May 12, 2026, says a lead is frequently sent to several Approved Pros. It also says sales and onboarding lead-volume guidance is an estimate, not a promise.
Angi’s genuine gain is breadth. A contractor can appear for several related tasks, maintain a public profile and tap a large homeowner network. The loss is control over recipient count and screening labor. Angi says it makes connections; it does not describe every lead as a one-buyer, phone-qualified appointment.
Sources: Angi Pro Agreement version 1.4, effective 12 May 2026; Angi “Window and Door Contracting Pros” national and selected city pages; Angi Pro signup page. Checked 20 August 2026.
The FTC order still belongs in a 2026 switch decision
In January 2023, the Federal Trade Commission announced an order involving HomeAdvisor, an Angi-affiliated company. The order required HomeAdvisor to pay up to $7.2 million and stop deceptively marketing home-improvement leads.
The FTC complaint alleged false, misleading or unsubstantiated claims about lead quality and source dating to at least mid-2014. It addressed service and geographic matching, whether homeowners had asked HomeAdvisor directly for help, and representations about how often leads became jobs.
HomeAdvisor disputed the allegations. An Angi spokesperson called them “outrageous” and described the suit as “meritless,” arguing that the FTC relied on a small, cherry-picked set of sales calls and overlooked the value delivered to contractors.
That rebuttal belongs beside the regulator’s record. The order does not prove that every current Angi window lead is unsuitable. It does justify a stricter buying process: compare the sales claim, current pro terms and exact order, then keep whichever promise is narrowest and written.
Sources: Federal Trade Commission HomeAdvisor case record and order; Angi spokesperson statement reported by PYMNTS, 14 March 2022. Checked 20 August 2026.
What each Angi alternative changes
1. theBuildd removes seller-created competition
Each accepted theBuildd lead goes to one buyer through theBuildd. The homeowner may still seek another quote independently. Coverage is agreed by ZIP code and trade without a permanent territory right or per-ZIP volume promise.
Trial and weekly buyers receive opt-ins and handle qualification, booking and follow-up. Monthly buyers can add dispatching, where an in-house caller contacts and qualifies opt-ins against agreed criteria. When a reached homeowner qualifies, the caller works toward the selected live transfer or booked appointment. No plan guarantees contact, qualification, booking, attendance, a job, volume or specialty mix.
Current plans and pricing are $300 for a trial of 4 to 7 opt-ins and $800 for the weekly plan, both without dispatching. Monthly plans cost $3,000, $6,000, $9,000 and $12,000, with optional dispatching at $500, $1,000, $1,500 and $2,000 on the matching tiers.
Bad leads are replaced rather than refunded under the applicable standard. Ask for the accepted window and door scopes, ZIP codes, recipient count, handoff, complete replacement rule and reporting window in the order.
2. Modernize has the clearest broad scale signal
Modernize’s windows program lists vinyl, wood, fiberglass, impact-resistant, storm, retrofit and full-frame projects. It offers standard leads, inbound calls and live transfers. The company says its call center prequalifies live transfers, while standard form details go to a contractor for follow-up.
Its strongest advantage is acquisition breadth. Modernize publishes a large cross-trade qualification count and supports call-center teams, CRM delivery and location targeting. Its consumer FAQ says a quote request can match with up to four contractors, so standard leads are not a clean one-buyer replacement.
Doors need separate confirmation. Modernize lists doors in its affiliate inventory, but its contractor-facing windows page does not document door products with the same depth. A combined installer should require separate capacity and pricing for each service line.
Sources: Modernize “Window Replacement Leads,” “How a Lead Comes to Modernize,” affiliate program and homeowner FAQ. Checked 20 August 2026.
3. 99 Calls turns acquisition into a managed system
99 Calls publishes a dedicated window-installation program using organic search, Google Ads and, where available, Local Services Ads. It names window replacement, installation, repair, storm windows and sliding-door replacement, and says each lead goes to one company.
This is a larger operational change than buying another contact feed. The contractor gains a managed website, listings, advertising and CRM tools, depending on the package. It also takes on channel ramp time, campaign dependence and the need to distinguish which assets and accounts remain under contractor control.
Source: 99 Calls “Window Installation Leads,” checked 20 August 2026.
4. Inquir sells a detailed exclusive record
Inquir’s windows-and-doors page is unusually specific about the delivered data. It lists project type, quantity of windows or doors, installation timeline, homeownership confirmation, contact preference and proof-of-consent records. It says each lead comes from its owned Renovate Co site and goes to one buyer.
The gain is precise filtering and pay-as-you-go delivery without a published minimum. Pricing starts at $45 on the current contractor offer, which also publishes a $45 to $120+ range based on targeting and volume. The caveat is the qualification method: phone, email and identity validation can improve contactability, but they do not establish that a person discussed scope and intent with the homeowner.
Its “high-volume support” is a capability claim, not a local supply count. Ask for recent delivery by repair, replacement, windows, doors, quantity band and ZIP code before assigning it the full Angi budget.
Source: Inquir “Window & Door Leads for Contractors and Agencies,” checked 20 August 2026.
5. Google Local Services Ads captures direct search demand
Google officially lists window repair as an eligible US Local Services Ads category. Its definition includes installation and repair of windows and may extend to doors, skylights and other glass. Advertisers can choose job types and service areas, subject to local eligibility and verification.
The contractor gains control of the profile, targeting, budget and lead record. The contractor also owns reviews, account maintenance, screening and response coverage. Google does not promise protected territory, a windows-and-doors volume floor or a phone qualification conversation before every contact.
This channel fits repair and installation demand that maps cleanly to Google’s available job types. A replacement dealer should inspect the live account options rather than assume a broad “window repair” category will expose every whole-home or specialty-door project.
Sources: Google Local Services Help, US getting-started guide, category screening requirements and job-type controls. Checked 20 August 2026.
6. 33 Mile Radius offers exclusive calls with a document caveat
33 Mile Radius expressly lists whole-home window replacement, vinyl windows, doors and storm windows. It routes live calls to one contractor and publishes no setup fee, monthly fee or long-term contract. Valid leads are billed weekly under its service, authority and location rules.
One detail needs clarification before purchase. The live window-leads page describes the service condition as a request for “bath remodeling or installation services,” which appears inconsistent with the surrounding window copy. That may be a page error, but the accepted order must state the actual billable window and door scopes.
Its 20,000-lead annual claim covers the full partner network, not windows in one territory. Treat 33 Mile Radius as a potentially useful exclusive call source, then let written local availability decide whether it can replace Angi or only supplement it.
Sources: 33 Mile Radius “Window Lead Generation” and pricing page, checked 20 August 2026.
A two-lane plan protects the estimator calendar
Windows and doors should not sit in one undifferentiated lead bucket. A whole-home replacement appointment, a single failed seal, an entry-door install and a sliding-door repair use different sales time, field skills and material workflows. One cheap category can hide an expensive mismatch.
| Lane | Include | Strongest first tests | What to reject before delivery |
|---|---|---|---|
| Replacement lane | Multi-window, full-frame, whole-home, entry and patio-door replacement | theBuildd, Modernize, 99 Calls, Inquir or 33 Mile Radius, subject to local supply | Repair-only requests, wrong quantity, unsupported product, outside ZIPs and commercial work when not accepted |
| Repair and gap-fill lane | Glass, hardware, seals, screens, isolated openings and smaller installs | Google Local Services Ads plus tightly filtered provider leads | Jobs below the minimum, unsupported glass or hardware, emergency work outside staffed hours |
| Owned lane | Referrals, Google Business Profile, local service pages and past-customer reactivation | Contractor-controlled search and follow-up | Nothing automatically; route by the same job-type and territory rules |
What contractors gain and lose by switching
Leaving Angi can remove multi-pro delivery, improve job-type control or put the acquisition assets in the contractor’s account. It can also remove a familiar profile, broad project mix and a single place where homeowners compare providers.
| Switch | What the contractor gains | What the contractor loses or takes on |
|---|---|---|
| Angi to theBuildd | One buyer through theBuildd, published prices and optional monthly dispatching | Broad marketplace reach, commercial scope, automatic intake on base plans and any expectation of a volume floor |
| Angi to Modernize | Deep replacement-window program, several delivery types and broad acquisition scale | A clean exit from multi-contractor matching on standard leads |
| Angi to 99 Calls | Exclusive managed acquisition and longer-term owned-search potential | Instant marketplace flow; package ramp and asset ownership need scrutiny |
| Angi to Inquir | Exclusive, detailed, pay-as-you-go window and door records | Human phone qualification before every delivery |
| Angi to Google | Direct local-search selection and campaign control | Outsourced screening, review work, verification and account management |
| Angi to 33 Mile Radius | Exclusive live calls and flexible published terms | Proof that local window and door volume is enough; certainty until the service wording is fixed in writing |
Worked example: cost per sold job from a $45 lead
This illustration uses one published price and two explicit assumptions. It is not a forecast, an industry benchmark or a result reported by theBuildd, Inquir or any contractor.
| Named input | Value | Evidence status |
|---|---|---|
| Price per lead, P | $45 per lead | Published Inquir starting price, checked 20 August 2026 |
| Paid leads, L | 8 leads | Assumption: an illustrative test cohort |
| Sold jobs, J | 1 job | Assumption: one sale from the eight-lead cohort |
Lead spend: L × P = 8 leads × $45 per lead = $360.
Sold-job share: J ÷ L = 1 sold job ÷ 8 leads = 0.125 sold jobs per lead, or 12.5%.
Cost per sold job: (L × P) ÷ J = $360 ÷ 1 sold job = $360 per sold job. The rate form produces the same result: $45 per lead ÷ 0.125 sold jobs per lead = $360 per sold job.
The 12.5% sold-job share is calculated from the two assumptions, not presented as a realistic close-rate claim. Replace L and J with one provider cohort from your CRM. Add staff time, membership, setup, management and ad-spend charges when they apply, because the worked result includes lead charges only.
Source input: Inquir “Window & Door Leads for Contractors and Agencies,” checked 20 August 2026.
The invoice will never tell you that. Compare total spend with reached homeowners, qualified replacement opportunities, held measurements, issued quotes, sold jobs and gross margin. The contractor lead-cost framework explains why contact price alone is the wrong scoreboard.
A controlled exit takes six steps
- Split the last Angi period by project. Separate repair, single-opening installation, multi-window replacement, whole-home replacement, entry doors, patio doors and work you would decline today.
- Define the capacity that must survive. Record estimator slots, install capacity, staffed response hours, serviceable ZIP codes and minimum project scope. Do not buy a larger map than the team can serve.
- Request recent local supply. Ask each provider for availability by project type and ZIP. Treat every national volume figure as background until that answer arrives.
- Write the buying rules. Put recipient count, resale, source, qualification, delivery, billable event, invalid-lead remedy, term and exit language in the order. Compare the vendor against all supported trades if you sell adjacent exterior work.
- Run a bounded overlap. Keep Angi active while one replacement lane and one repair lane produce enough actual estimates to expose scope errors and operational gaps.
- Move spend from outcomes. Compare held measurements, issued proposals and sold work under fixed source definitions. Reduce Angi only when the replacement mix supports the calendar.
That is really all there is to it. The best windows and doors lead source is not the one with the largest company-wide number. It is the source that repeatedly fills the right estimator slots, under written distribution and qualification rules, in the territory your crews can serve.
See the exclusive-lead alternative
theBuildd fits residential windows and doors contractors that want one buyer through theBuildd, agreed ZIP-and-trade coverage and the choice to add dispatching on a monthly plan. It is not the right choice for commercial projects, guaranteed weekly volume or a buyer requiring cash back instead of replacement.
Check an exclusive windows and doors territory.
Share the residential project types and ZIP codes you want. We will explain current coverage, the plan-specific handoff and replacement terms before you decide.