Window Installation and Repair in Fort Collins and Surrounding
Serving Berthoud, Johnstown, Fort Collins, Loveland, Windsor, or surrounding Northern Colorado areas
Established in 1998 - Fully Licensed and Insured - Detail-Oriented
Trusted Window Installation & Repair for Northern Colorado Homes
Windows aren’t just glass and frames, they’re what let the Colorado sun warm your living room, what keep winter drafts from sneaking in, and what gives your home its character from the street. When they stop doing their job, you feel it fast.
At J Allen Construction, we’ve been helping Northern Colorado homeowners replace, repair, and upgrade their windows for decades. Licensed, insured, and rooted right here in the community, we know how to keep your home comfortable through every season.
What We Offer: Window Services for Your Home
Every home tells a different story, and your windows should fit the way you live—not the other way around. We handle just about every window project you can think of, including:
- Replacement Windows – From double-hung and casement to bay, bow, and custom shapes, we’ll match the right fit for your home’s style.
- New Installations – Expanding an opening for more light or adding a fresh view? We’ll make sure it’s done cleanly and to code.
- Repairs & Fixes – Foggy panes, cracked glass, faulty latches, or drafty seals—we’ll set them right.
- Energy Upgrades – Low-E glass, argon-filled panes, and triple glazing that actually take the edge off your utility bills.
In short, if it’s a window in your Fort Collins home, chances are we can fix it, replace it, or upgrade it so it looks sharp and works like it should.
Why Choose Us: Trusted, Local, Energy-Smart
Windows aren’t one-size-fits-all, especially in Northern Colorado. What works in Arizona won’t hold up against our hailstorms, dry winters, or the sun beating down on west-facing glass. That’s where our local know-how makes all the difference.
Every window we install or repair is handled by licensed, insured professionals who treat your home like their own. We don’t send strangers; we send background-checked, trained craftsmen who know the ins and outs of today’s energy-efficient products. We pair that expertise with warranties that actually mean something, so you’re not left guessing about the quality down the road.
Plenty of companies can “put in a window.” We go further: we help you choose styles and materials that stand up to our climate, save on heating and cooling, and add curb appeal you can be proud of. That’s the J Allen way: local, practical, and built to last.
Our Process: Homeowner-Friendly & Transparent
We know letting someone work on your home is a big deal. That’s why our process is designed to keep things clear and worry-free from the first phone call to the final walkthrough.
- Free Home Assessment – We stop by, measure, and take a hard look at your current windows. You’ll get honest feedback on whether repair or replacement makes the most sense.
- Clear Estimate & Schedule – No fuzzy numbers or vague timelines. We give you a straightforward breakdown of the cost and when the work will be done.
- Professional Installation or Repair – Our crew protects your floors, cleans up after themselves, and makes sure everything’s up to code. No shortcuts, no mess.
- Final Walkthrough & Care Advice – You’ll open, close, and test every window before we leave. We’ll also give you tips on cleaning and upkeep, plus warranty info.
- Ongoing Support – Questions pop up later? You’ll know exactly who to call, and we’ll be there to help.
- It’s a process built on trust and respect, because that’s how neighbors should do business.
Homeowner Tips: Window Care & DIY Maintenance in Fort Collins
Not every draft or sticky sash means it’s time for a full replacement. With a little routine care, you can stretch the life of your windows and keep your home more comfortable year-round. Here are a few things we recommend to homeowners around Fort Collins:
- Winter Seal Check – On a cold day, run your hand around the frame. If you feel a draft, it’s time to recaulk or replace weatherstripping. A little attention now saves you from bigger heating bills later.
- Spring Reset – As temperatures climb, give the hardware some love. A quick wipe and a drop of lubricant on hinges or tracks can keep windows opening smoothly.
- Hail Prep – Colorado storms can be rough. Removable storm panels or protective films are worth the effort if you’ve got windows facing the brunt of hail season.
- Sun Defense – West-facing glass can fade furniture and floors. Adding UV-resistant film or exterior shades keeps your home looking good and reduces glare.
A quick DIY check once a season goes a long way, but there are red flags you shouldn’t ignore: condensation between panes, warped frames, or glass that rattles in the wind. That’s when it’s time to give us a call. Think of these tips as tune-ups, with us as your go-to crew when something bigger crops up.
Service Area & Coverage
We’re proud to serve Fort Collins families and the neighbors just beyond city limits. You’ll spot our trucks in:
- Fort Collins
- Loveland
- Windsor
- Johnstown
- Berthoud
- Nearby Northern Colorado communities
Chances are, if you’re in Northern Colorado, we’ve already worked on a window or two right down your street
FAQ: Your Fort Collins Basement Remodel Questions
- How long does window installation take?
Most standard window replacements are finished in half a day. Larger projects, like multiple rooms or custom sizes, might take a day or two, but we’ll give you a timeline before we start. - Can you match my home’s existing style?
Yes. Whether your home leans traditional, modern, or somewhere in between, we’ll help you find windows that look like they’ve always belonged. - Do you remove and dispose of old windows?
Absolutely. We’ll haul them away and make sure they’re recycled or disposed of properly, no heavy lifting or mess left behind.
What Folks Around Here Are Saying
Marvin J
We used J Allen for a complete kitchen and master bath remodel and was extremely pleased with the finished products. Jerry and his team provided innovative suggestions in the design and the attention to detail and workmanship was outstanding. We are now using J Allen to build our new home!
Richard S
Great people working for you!!!
tj v
I was working in Germany when we contracted J. Allen Construction to build our retirement home in Colorado. We selected J. Allen Construction due to their exceptional reputation for quality construction, professional integrity and commitment to maintain schedule. We knew that even though we weren't present to inspect construction, that Jerry Allen would build the house as if it was his own. Over the last 20 years J. Allen Construction has contacted us every year to inspect the house for necessary repairs or upgrades and used his quality construction crew and subs to perform any needed work. We highly recommend J. Allen Construction. Quality, Integrity, and Service are the fundamentals of this company.
Ready to Upgrade or Repair Your Windows?
If your windows are drafty, fogged up, or just plain outdated, don’t put off the fix. At J Allen Construction, we’ve spent years helping Northern Colorado homeowners stay comfortable and cut down on wasted energy by getting their windows working the way they should.
Give us a call today to set up your free in-home assessment, or send us a note online if that’s easier for you. Whether you need one pane repaired or the whole house upgraded, we’ll show up when we say we will, treat your home with respect, and leave you with windows that open, close, and seal the way they’re supposed to.
We’re local. We’re licensed. And we’re ready to help you see your home in a better light.