







A free site visit, a check of what your lot allows and a written, line-item price.
Get your free estimateFast, Reliable Garage Conversion Contractor Across Aldine
A garage conversion in Aldine typically costs between $38,000 and $92,000 depending on whether you’re converting an attached or detached garage, the level of finish, and what Harris County requires for your specific subdivision. Most full conversions we complete in Aldine take 8 to 14 weeks from permit application to final inspection. If you’re wondering whether your garage can become livable space, call us at (361) 326-2313 and we’ll walk you through what’s actually involved before you spend a dollar.

We’re Lodgewick ADU Houston, the ADU company of the Kingswell family. We’ve been building Garage Conversion Contractor projects across Harris County since 2010, and our crews work throughout Aldine every week. We know the difference between what Harris County will approve in unincorporated Aldine versus what Houston proper allows, and that local knowledge saves Aldine homeowners thousands in rework. Led by Russ Delmar, our team puts every price, every timeline, and every guarantee in writing before work begins.
Key Takeaways for Aldine Homeowners
- Written price first: You get a fixed, line-item quote before any work starts. No change orders at the door.
- Aldine permitting is different: Unincorporated Harris County rules apply here, not Houston city ordinances. We handle it.
- Real local range: Attached garage conversions in Aldine run $38,000 – $68,000. Detached ADUs run $65,000 – $115,000.
- 365-Day Done Right Promise: If the work fails within a year, we come back and fix it. That’s in writing.
Why Lodgewick ADU Houston Is Aldine’s Preferred Garage Conversion Contractor Company
We’ve built enough garage conversions around Aldine to know this area’s quirks before we ever step on your property. Homes off Aldine Mail Route, near the 77039 zip, and along the Hardy Toll Road corridor present different slab conditions, different deed restrictions, and different drainage realities than homes in newer subdivisions further north. Our Garage Conversion Contractor in Aldine experience means we arrive already knowing what to check, not figuring it out at your expense.
Russ Delmar leads every Aldine project personally. When you call, a live person answers, 24/7, not a voicemail. When we schedule a visit, you get a defined arrival window, not “sometime Tuesday.” Our technicians are background-checked and uniformed, so you always know exactly who you’re letting onto your property. And every commitment we make – price, timeline, scope, guarantee – goes in writing under The Kingswell Guarantee before the first nail is driven.
We’re not the cheapest contractor in Aldine, and we won’t pretend to be. What we are is the contractor who shows up when we say we will, prices honestly, and comes back if something isn’t right. Homeowners tell us that’s what they actually wanted the first time around.
Garage Conversion Permit in Aldine

A Garage Conversion Permit in Aldine is the single most important document in your project, and here’s the catch most homeowners miss: because Aldine sits in unincorporated Harris County, you’re not dealing with Houston’s permit office at all. You’re navigating Harris County’s permitting and inspection process, which operates differently, often takes longer for initial review, and requires documentation that city contractors rarely prepare correctly. We pull these permits for every Aldine job, and we’ll tell you upfront what your subdivision’s deed restrictions require.
Permit costs in Aldine typically run $1,800 to $4,200 depending on square footage and whether your project triggers a floodplain determination. The construction drawings, energy compliance calculations, and site plan are separate line items we include in your written quote. If a contractor quotes you a garage conversion without mentioning floodplain determination for Aldine’s low-lying subdivisions, walk away. That’s the single most common reason builds get stopped mid-project here.
Subdivision Deed Restrictions and Lot-Line Setbacks
Aldine’s older neighborhoods, especially those platted before Harris County adopted modern setback rules, often have garage slabs that sit closer to rear property lines than current code allows for habitable space. Before you commit to a design, we check your lot’s setback requirements against the actual slab location. This audit alone has saved Aldine clients from spending $8,000 to $15,000 on plans for a conversion that could never legally be approved.
Floodplain Determination and Foundation Requirements
Since Hurricane Harvey, Harris County requires a floodplain determination on nearly every garage conversion in Aldine. If your property falls within a regulated floodplain, the county will require engineered fill, flood vents, or an elevated floor system before final approval. We handle this determination as part of our permitting package, and we’ll tell you the finding before you spend money on construction documentation.
Garage Conversion to Living Space in Aldine
Garage Conversion to Living Space in Aldine means taking your existing attached or detached garage and transforming it into a habitable room or apartment that meets Harris County building code for insulation, electrical, ventilation, egress, and structural safety. The most common uses we build for Aldine homeowners are primary bedroom suites, in-law apartments, and rental units that generate monthly income. A straight conversion to a finished room runs $38,000 to $68,000; adding a full kitchen and bathroom pushes the job to $55,000 to $85,000.
The scope matters less than the foundation and electrical reality. Most Aldine homes built in the 1970s and 1980s run on 100-amp electrical service, which cannot support a converted living space with a mini-split, kitchenette, and modern lighting without a panel upgrade. We include the panel upgrade in our written price from day one. Contractors who skip this end up failing the final inspection on load calculation, and then the homeowner pays for the upgrade anyway, plus a re-inspection fee.
Attached Garage Conversion Process
An attached garage converts faster because utilities already run through the shared wall, and the foundation is typically tied to the main house slab. The process in Aldine goes: structural assessment, permitting, electrical and HVAC rough-in, insulation, drywall, finish work, and final inspection. You’ll be without your garage for 6 to 10 weeks on the typical attached conversion job.

Detached Garage ADU and Apartment Conversion
A detached garage conversion in Aldine gives you a true accessory dwelling unit, or ADU – a small house on the same lot as your main house. This is where the numbers get more interesting because a detached ADU with its own meter, kitchen, and bath can rent for $900 to $1,300 a month in Aldine depending on finishes and proximity to major employers. Detached jobs run $65,000 to $115,000 and take 12 to 16 weeks, but the income potential often justifies the higher cost.
Trusted Brands We Service in Aldine

Our Aldine crews work regularly with Boxabl prefab components for detached garage ADUs where the slab can support panelized construction, and we spec James Hardie siding on nearly every exterior finish we install because it holds up to Houston humidity and the shifting clay soils that run through Aldine’s subdivisions. We also work with Plant Prefab systems when a client wants a highly energy-efficient envelope without the cost of full custom framing. Because we stock local parts and have supplier relationships in the Houston metro, Aldine customers don’t wait for materials to ship from out of state.
One note on Aldine’s soil: the gumbo clay that runs under much of this area expands and contracts with moisture. We specify fiber-cement siding and flexible sealants rather than rigid stucco for that reason, and it’s a specification decision that only matters in a climate like ours.
Common Garage Conversion Contractor Problems We See in Aldine Homes
- Slab too close to the rear property line: Aldine’s older plats often have detached garages built close to or on setback lines that were legal for garages but are not legal for habitable structures. We check this before you invest in plans. Fixing it usually means either a variance application (which can take 4 to 6 months) or redesigning the conversion footprint.
- Floodplain determination stops the build: Crews who skip the county’s floodplain determination get red-tagged. Harris County requires this on nearly every Aldine conversion, and the finding can trigger engineered fill or flood vents that add $4,000 to $9,000. We include the determination in our permit package so there are no surprises.
- Undersized electrical panel fails final inspection: Aldine’s older housing stock frequently runs 100-amp service. A converted garage with a mini-split, kitchenette, and lighting will exceed that. We size the panel upgrade into the original written quote, not as a change order.
- Contractor ghosting after the check clears: Aldine homeowners have told us stories about paying deposits to contractors who never pulled permits or never returned. The Kingswell Guarantee is our answer to that: written price first, defined arrival windows, clean job site daily, written guarantee on every project, and a free return visit if the work fails within 365 days.
Pricing for Garage Conversion Contractor in Aldine, TX

Here are the real numbers we quote on Aldine garage conversions in 2025. A basic attached garage conversion to a finished room without plumbing runs $38,000 – $48,000. Adding a half bath and kitchenette pushes that to $50,000 – $68,000. A detached garage ADU with full kitchen, full bath, and separate meter runs $65,000 – $115,000 depending on finishes, foundation work, and the floodplain requirements that come back on the county determination. Every quote includes permits, drawings, materials, labor, and the written 365-Day Done Right Promise.
What changes the price once work starts? In Aldine, the honest answers are: discovering that your slab needs structural reinforcement or replacement, a floodplain determination that requires engineered fill, or running into deed restrictions that force a redesign. We surface every one of these risks in our written quote before we ask you to sign anything. If a contractor’s Aldine price seems too low, ask them specifically about the floodplain determination and the panel upgrade. Those are the two line items that separate honest quotes from door-knock specials.
Call (361) 326-2313 for a free, written estimate on your Aldine garage conversion. The quote is free, the phone call is live, and the price you get is the price you’ll pay.
We Also Serve Cities Near Aldine
Our crews serve Aldine and the surrounding Harris County communities, including Houston, Spring, Katy, and Sugar Land. If you’re anywhere in the northwest Houston metro, we’ll come out, scope the job, and give you the same written price and Kingswell Guarantee. Scheduling is coordinated through our Houston office, so a live person answers every call no matter where your project is.
Serving Aldine, TX - Our Local Coverage Area
We’re based in the Aldine area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Garage Conversion Contractor in Aldine
The first step is a lot-line setback check and a floodplain determination. In Aldine, because you’re in unincorporated Harris County, your subdivision’s deed restrictions and the county’s floodplain rules govern what can legally be converted, not Houston’s city code. We run both checks before you spend money on plans, and we’ll show you the written findings. Call (361) 326-2313 and we’ll start the process this week.
You need a structural inspection of the slab’s thickness, reinforcement, and elevation relative to floodplain requirements. Aldine’s gumbo clay soil means slabs settle and crack over time, and a slab that was fine for parking may not meet habitable-space standards. We inspect the slab as part of our free estimate and give you a written answer on whether it can be saved, reinforced, or needs replacement.
Yes. Aldine is unincorporated, so you’re under Harris County’s permitting and inspection jurisdiction, which has different application requirements, different review timelines, and different floodplain rules than Houston’s city permit office. Contractors who primarily work in Houston often miss these differences. We pull Harris County permits on Aldine jobs every month and know what the county will require before we file.
For most Aldine conversions, we specify James Hardie fiber-cement siding on the exterior because it resists moisture and won’t crack when Aldine’s clay soil shifts. For the interior partition walls on detached ADUs, we’ve had good results with pre-framed wall panels from Mighty Buildings, which we recently used on a detached studio conversion off Hopper Road. The panels arrived square and true, and the project passed Harris County final inspection on the first visit.
Plan on 8 to 14 weeks from the day we apply for the permit to the day the final inspection clears. The biggest variable in Aldine is Harris County’s permit review time, which runs 3 to 6 weeks depending on their current volume and whether your project triggers floodplain review. We’ll give you a written schedule with defined milestones when we quote the job. Call (361) 326-2313 for an exact timeline on your specific project.
Written by Russ Delmar, Owner at Lodgewick ADU Houston, serving Aldine and the greater Harris County area.



