Boulder County, along the St. Vrain

Exterior Painting in Longmont, CO

Exterior painting in Longmont, CO covers a wide spread of siding: brick and wood near the old downtown, hardboard on many homes from the 1970s through the 1990s, and fiber cement or engineered wood on newer ones. The siding decides the prep, so we name it before we price it.

County
Boulder
Elevation
About 5,000 ft
Common exteriors
Hardboard, wood lap, brick, fiber cement
Painting window
Late spring to early fall
Chalking, blistering and alligatored paint on siding beside a hail-dented gutter, an illustration of exterior paint failure
Illustrative scene. Chalking, blistering and alligatored paint on siding beside a hail-dented gutter, an illustration of exterior paint failure

Longmont's houses, era by era

Longmont started as an agricultural colony town in the early 1870s, and the neighborhoods around Main Street still hold Victorian and early 1900s houses, brick bungalows and wood-sided cottages. Through the postwar decades the town spread out with ranches, bi-levels and tract homes, and from the 1990s on came larger subdivisions and planned neighborhoods such as Prospect New Town, known for its bold color schemes.

Saturated colors like deep reds, blues and greens fade faster under strong UV than softer mid-tones, and at this altitude the difference shows within a few seasons on south and west walls. If you love a strong color, ask about the paint's fade resistance on the product data sheet and plan for trim and doors to need attention first.

At about 5,000 feet and a bit farther from the mountains than Boulder, Longmont gets fewer of the extreme winter windstorms but just as much high-altitude sun, plus its share of plains hail.

Siding type sets the plan

SidingWhere it's commonMain riskWhat we do
Wood lap and clapboardOlder homes near downtownThick old paint layers, lead on pre-1978 homes, rot at sillsLead-safe scraping, wood repair, primer on bare wood
Hardboard lapMany 1970s to 1990s subdivisionsSwells and flakes where water reaches cut edges and nail holesReplace soft boards, seal edges, prime, two coats
BrickBungalows and ranchesPainted brick can trap moistureLeave bare brick bare; breathable coating on brick already painted
Fiber cementNewer homes and replacementsOpen caulk joints, thin builder paintRecaulk, spot prime, two topcoats
Engineered woodNewer subdivisionsSwelling at unsealed cuts and bottom edgesSeal every exposed edge before topcoats

Hardboard deserves its own note. It holds paint well while its surface stays sealed, but once water gets into a board it swells, softens and won't hold paint again. We probe boards near the ground, around downspouts and under windows, and replace failed ones before painting. Painting over a swollen board buys a season or two at most. Our siding painting page covers each material in more depth.

Older homes near downtown

The older parts of Longmont have plenty of houses built well before 1978, so we plan prep under the EPA's Renovation, Repair and Painting rule: ground covers, wet methods where they help, no open-flame paint removal and thorough cleanup. If your home is designated as a local landmark, check with the city's planning staff before changing siding, windows or trim.

A frequent problem on these houses is paint that has built up in thick layers and now cracks in a checked, scaly pattern, sometimes called alligatoring. Topcoating over it doesn't fix anything. The loose material has to come off down to a sound layer, and sometimes that means stripping sections of trim or siding. It's slow work, and it's where a low bid usually cuts corners.

Scheduling around Longmont weather

Our season here usually runs from late spring into early fall. Daytime highs can look fine in April or late October, but nights drop below the minimum temperatures on most product data sheets, and paint that hasn't cured before dew or frost settles can fail early. Midsummer brings the opposite problem: a dark west wall in afternoon sun can be too hot to paint well, so we follow the shade around the house through the day.

Hail comes mostly with spring and summer thunderstorms. If a storm hits while a job is underway, we inspect fresh paint for pitting before the next coat goes on.

Getting a useful estimate

Ask each bidder to write down the siding type, how many boards they expect to replace, how bare wood will be primed and how many topcoats go on. If one bid is far lower than the rest, the missing piece is usually prep. We also work in nearby Firestone and Mead, where newer homes face the same sun and hail.

Request an estimate and we'll identify your siding on site.

FAQ

Longmont exterior painting questions

How can I tell if my Longmont home has hardboard siding?

Hardboard often has an embossed wood-grain pattern that looks a little too regular to be real wood, and the boards are uniform in thickness. Swollen, mushroomed bottom edges and flaking around nail heads are common signs. If you're not sure, we'll look at an exposed edge or the back of a board during the walk-through and tell you what you have.

Should I replace hardboard siding instead of painting it?

Not necessarily. Sound hardboard paints well, and replacing a handful of damaged boards before a repaint is routine. If damage is widespread across several walls, residing may make more sense than repeated repairs. We'll show you which boards are failing so you can weigh the choice with full information.

Do older Longmont homes need lead-safe painting?

Any home built before 1978 may have lead paint, and the EPA's Renovation, Repair and Painting rule sets work practices for disturbing it. Many houses near downtown Longmont fall in that range. We contain debris on the ground, use wet methods where practical, avoid open-flame removal and clean up thoroughly each day.

What's the best time of year to paint a house in Longmont?

Late spring through early fall gives the most reliable mix of warm days and nights above the paint's minimum temperature, with summer as the core. Earlier and later dates work on some days, but cold nights and heavy morning dew narrow the window, and spring hail can interrupt any schedule.

Nearby

Exterior painting near Longmont

All service areas

Free estimate

An estimate in Longmont

Town, surface, timing and what is going on with the exterior. The estimate is free.

We reply to set up a time to look at the house. The estimate is free. See our privacy notice.