Longmont remodeling
and custom homes.

Longmont's homes range from historic houses near Main Street to mid-century ranches and newer neighborhoods on every edge of the city. We design and build kitchens, baths, basements, and custom homes across all of it.

Remodeled kitchen with walnut cabinetry, brass hardware, and marble countertops — Fig. 01 · Design + build, Longmont.

§ 01 · Building in Longmont

Longmont is the southern edge of our footprint and one of its most varied markets. A remodel near downtown often means opening walls in a house that's close to a century old. A project in a 1970s or 1980s neighborhood usually means updating a closed layout and tired mechanicals. Newer homes tend to need finished basements and better kitchens.

We scope each house for what it actually is, and we're upfront about what an older home may reveal once the walls are open.

— Bastian Build Co.

§ 02 · What we build

What we build
in Longmont.

Kitchen remodeling in Longmont

Kitchen remodels from character-preserving updates in older central Longmont homes to full layout changes in newer neighborhoods.

Bathroom remodeling in Longmont

Primary and hall bath remodels, tub-to-shower conversions, and accessible bathrooms built to last.

Basement finishing in Longmont

Basement finishes with bedrooms, bathrooms, egress windows, and media rooms, with radon and moisture planned for up front.

Custom homes in Longmont

Custom homes and additions on Longmont infill lots and acreage in the surrounding county.

Design + build in Longmont

Design + build under one contract, so there's no handoff between a designer and a bidder.

§ 03 · Permits

Longmont permits,
handled start to finish.

Longmont's Building Services requires permits for additions, alterations, basement finishes, interior remodels, and changes to electrical, gas, mechanical, or plumbing systems — including smaller items like window replacement and drywall work. The city adopted the 2024 International Codes, effective July 1, 2026.

Older Longmont homes have one more step: for single-family remodels that disturb more than 50 linear feet of pipe or 32 square feet of other surfaces, the city requires asbestos testing with the permit submittal. We plan for that before demolition, not after.

Sources: City of Longmont Building Services · Longmont Permits · Longmont Building FAQs

Drawings and material samples laid out during design review — Fig. 02 · Drawings before permits.

Finished lower level with a wet bar — Fig. 03 · Lower levels, built for the ground they sit on.

§ 04 · Site conditions

The ground under
Longmont.

Like the rest of the Front Range, much of Longmont sits on clay soils that expand and contract with moisture — the Colorado Geological Survey's top-ranked geologic hazard for the state. We evaluate foundations, slabs, and drainage before finishing a basement or tying an addition into an existing house.

Radon is common along the Front Range, so radon testing and mitigation coordination are part of every Longmont basement project we build.

Source: Colorado Geological Survey — Expansive Soil & Rock

§ 05 · Neighborhoods

Where we work
in and around Longmont.

Historic Old Town and the neighborhoods around Main Street, Prospect New Town, Southmoor Park, Clover Basin, and acreage in surrounding Boulder and Weld counties.

Also serving: Fort Collins · Loveland · Windsor · Timnath · Greeley · Wellington · Berthoud · Estes Park, and the rest of our Northern Colorado service area.

§ 06

Questions we hear
in Longmont.

Does a Longmont remodel need asbestos testing?

Sometimes. For single-family homes, Longmont requires asbestos testing when a project disturbs more than 50 linear feet of pipe, 32 square feet of other surfaces, or the volume of a 55-gallon drum. We check older homes before demolition so it doesn't hold up the permit.

Which building code does Longmont use?

The City of Longmont adopted the 2024 International Codes, effective July 1, 2026. We design and document to the code in effect when the permit is submitted.

Do I need a permit to finish a basement in Longmont?

Yes. Longmont lists basement finishes, interior remodels, and changes to electrical, plumbing, and mechanical systems as permitted work. We handle the drawings, the submittal, and the inspections.

Is Longmont inside your service area?

Yes. Longmont is part of our footprint, and the first walk-through is free.

§ 07