Remodeling Contractor in Arvada, CO

1950s brick ranch homes near Olde Town in Arvada, Colorado — illustrative reference image, not a project photo.

One City, Two Counties, One Building Department

Arvada’s city limits cross the Jefferson–Adams county line, and that confuses more homeowners than any other question we get here. The answer is simple: if your property is inside Arvada city limits, the City of Arvada issues your building permit — not Jefferson County, not Adams County. Arvada is a home-rule municipality and runs its own Building Services division. The county line determines who assesses your property and sends the tax bill; it does not determine who reviews your plans.

Building Services is at 8101 Ralston Road, 720-898-7620, and permitting runs through the eTRAKiT online portal. If a contractor tells you your Arvada project needs to go to the county, that is a contractor who has not worked in Arvada.

The distinction matters more than it sounds. Adams County and Jefferson County have their own adopted codes and their own review queues, and they apply to unincorporated land. Arvada’s code and Arvada’s queue apply to you. Anyone bidding your project should already know which one they are pulling under, because it changes the requirements, the fees and the schedule.

The Code Changed in July 2026 — and It Affects What You Build

Arvada builds to the 2024 International Codes. On March 24, 2026 the City Council approved a code update package, formally adopted April 1, 2026 and in effect since July 1, 2026. Two pieces of it change residential projects directly.

The first is the Arvada Wildfire Resiliency Code, which brings structural hardening and defensible space requirements to structures in the city’s designated wildland-urban interface areas. If your property sits in one of those areas, exterior work — roofing, siding, decks, eaves, vents — now carries material and assembly requirements it did not carry two years ago. This is not a Front Range-wide rule; Arvada adopted it specifically.

The second is the Colorado Low Energy and Carbon Code, which brings electric-ready, solar-ready and EV-ready provisions into new work. On a remodel this usually surfaces as panel capacity and conduit: the code wants the path left open for future equipment even if you are not installing it now. It is far cheaper to run that capacity while walls are open than to come back for it.

If you are pricing a project against a bid written before mid-2026, the bid may not carry these requirements. That is a common source of change orders here right now, and it is worth asking about directly.

Olde Town and the Historic District

The Arvada Downtown Historic District — Olde Town — was listed on the National Register in 1998. It covers about 15.1 acres bounded by Ralston Road, Teller Road, Grandview Avenue and Yukon Street, and contains 42 contributing buildings. This is the city’s original pre-war core.

Work on or near a contributing building is a different kind of project. Exterior changes attract review that a 1970s ranch three miles away will never see, and the review is concerned with things bids usually ignore: window profile and material, siding reveal, roof form, porch detail, storefront proportion. The practical consequence is that repair of original elements often clears review where replacement does not — and on buildings of this age, repairing original sash and trim frequently produces the better result anyway, because the old growth wood in them outperforms most of what you can buy new.

If you are buying in Olde Town with a remodel in mind, establish the building’s status before you finalize a design. It is a phone call at the start and a redesign at the end.

What Is Behind the Walls in a Post-War Arvada House

Most of Arvada’s housing stock went up in the second half of the twentieth century, and only a small fraction predates 1950. That puts a large share of the city’s houses on the wrong side of 1978, which is the line that matters legally.

Federal law — the EPA’s Renovation, Repair and Painting rule — applies to any disturbance of painted surfaces in housing built before 1978, and it requires certified firms, contained work areas and specific cleanup verification. It is not optional and it is not a formality. Asbestos is the parallel problem: in Colorado, popcorn ceilings, vinyl floor tile and the mastic under it, duct wrap, and joint compound from that era all commonly test positive, and CDPHE Regulation 8 sets the thresholds at which abatement stops being a choice.

We test before demolition rather than after, because the alternative is discovering it mid-project with the house open and the work stopped. On a house of this era, the testing line item is small and the surprise is not.

Beyond the regulated hazards, expect the ordinary archaeology of a fifty- to seventy-year-old house: aluminum branch wiring in some mid-century tracts, galvanized supply lines closing up from the inside, undersized panels, and framing that earlier owners modified without headers. None of it is a reason not to remodel. All of it is a reason to open one wall and look before signing a fixed price.

Soil, Water and Radon

Expansive clay is the Front Range’s most expensive geologic problem. The Colorado Geological Survey identifies swelling soils — bentonite and montmorillonite clays in the Pierre Shale and related formations — as the state’s most damaging geologic hazard, underlying roughly a third of Colorado homes. It is why basement slabs here are usually floated rather than tied to the foundation, why interior basement walls get a gap at the top, and why drywall cracks reappear in the same corner every spring no matter how many times they are patched. A crack that keeps returning is telling you about the soil, not the drywall.

Jefferson County, where most of Arvada sits, is EPA Radon Zone 1 — the highest of the three zones, predicted indoor average above 4 pCi/L. A basement finish is the single best moment to deal with radon, because sub-slab depressurization is straightforward while the slab is exposed and awkward afterward. Test first; the result decides whether it is a $50 item or a real one.

Ralston Creek runs through the city. If your property is near it, confirm floodplain status by address before design rather than after — floodplain work carries its own approvals on top of the building permit, with requirements about how and at what elevation work can be done.

Hail and the Roof

The Front Range sits in one of the most hail-exposed corridors in the country, and roofing here is an insurance conversation as much as a construction one. Two things save homeowners money repeatedly: documenting the roof’s condition before a storm rather than after, and understanding that a supplement claim for code-required items — ice and water shield, drip edge, ventilation brought to current code — is normal and usually payable. A bid that quietly omits code items to look cheaper is not cheaper; it is a change order with a delay attached.

How We Run a Project Here

We look at the house before we price it, including at least one wall or ceiling cavity opened where the scope depends on what is inside. We confirm which permits apply and pull them ourselves — a permit in the homeowner’s name shifts liability to the homeowner, which is why some bids are cheaper. We schedule inspections rather than working around them. And we tell you the range and what moves it, instead of quoting a number that only holds if nothing behind the drywall is a surprise.

Services We Provide in Arvada

All work below is permitted and inspected under the authority with jurisdiction over Arvada.

Nearby in Jefferson County

We work throughout Jefferson County. Nearby communities:

Lakewood

See finished work across the Front Range on our recent projects page.

Common Questions

My house is in Arvada but the county records say Jefferson County. Who issues the permit?

The City of Arvada. Arvada is home rule and permits every property inside city limits through its own Building Services division, whether the parcel sits on the Jefferson or the Adams side of the line. The county appears on your assessor and tax records; it has no role in your building permit.

Does the new wildfire code apply to my remodel?

It applies to structures in Arvada’s designated wildland-urban interface areas, and it has been in effect since July 1, 2026. It affects exterior assemblies most — roofing, siding, decks, eaves and vents. Whether your address falls inside a designated area should be confirmed with Building Services before the exterior scope is priced.

Do I need approval for exterior work in Olde Town?

If the building is a contributing structure in the Arvada Downtown Historic District, exterior changes face design review that ordinary Arvada properties do not. Confirm the building’s status before you commit to a design, because the review looks closely at windows, siding, roof form and porch detail, and repair often clears where replacement does not.

Why does the same basement crack keep coming back after it is patched?

Usually expansive soil, not bad drywall. Swelling clay moves the slab seasonally, and if the basement framing is tied to the slab rather than floated with a gap at the top, that movement goes straight into the drywall. The fix is the framing detail and the drainage, not another patch.

Should I test for radon during a basement finish?

Yes. Jefferson County is EPA Radon Zone 1, and the moment the slab is exposed is the cheapest time in the life of the house to install sub-slab depressurization. Testing first tells you whether you need it; finishing the basement first means opening it up again if you do.

Talk to Us About Your Project

If you are planning work in Arvada — Olde Town, the post-war tracts, or the newer subdivisions on the west and north edges — we will walk the house, tell you what the permit path looks like, and give you a range with the reasons behind it. Arvada sits in Jefferson County, and we work across the Denver metro and the Front Range.