Window & patio door replacement Denver

Window Replacement in Denver, CO

Velazquez Windows provides professional window replacement in Denver CO, helping homeowners upgrade outdated windows with energy-efficient replacement windows designed for Colorado weather. Our experienced team also specializes in window installation and patio door replacement with honest pricing and quality workmanship.

Talk to Juan C. Velazquez directly
720-327-5783

window replacement denver

Free
In-home estimate

Owner on every job

Free in-home measure

Manufacturer-backed glass

We haul the old units away

What we do

Window & Door Services in Denver: Four Jobs, Done Properly

Windows and doors are all we do — so the measuring, the flashing and the finish work are the parts we have practised most.

Living room with tall arched replacement windows letting in daylight

Window Replacement

Tired, drafty or fogged-up windows swapped for new insulated units that actually seal.

Sliding patio doors seen from the garden

Patio & Sliding Doors

Sticking sliders and worn French doors replaced with smooth-running, weather-tight doors.

Installer setting a new window frame into the opening

Window Installation

Full-frame or insert installs, properly flashed, insulated and trimmed — inside and out.

Dining room with a large picture window looking out over the garden

Home Window Upgrades

Low-E glass, argon fill, new grids, obscure or tempered glass and basement egress windows.

Juan Velazquez measuring a window opening in a Denver home

Why homeowners call us back

Why Denver Homeowners Choose a Small, Owner-Run Crew

You will not be handed to a call centre or a rotating sub-crew. Juan C. Velazquez quotes the job, works the job and is the person you call if anything needs a second look.

  • One price per opening, in writing — units, labour, trim, disposal
  • Every opening measured on site, never estimated from a photo
  • Full-frame or insert install, whichever the frame actually needs
  • Floors covered, site vacuumed, old glass hauled away the same day
  • Straight advice — if a window only needs hardware, we say so

12+

Years in the trade

750+

Openings replaced

4.9

Average review score

1-2

Days for a typical home

How it works

From first call to clean-up.

Four steps, no surprises in between.

Step 01

Call or send the form

Tell us how many openings you are thinking about and what is bothering you about the current windows.

Step 02

Free in-home measure

Juan C. Velazquez comes out, measures every opening, checks the frames and talks through the options.

Step 03

A written quote

One clear price per opening — units, labour, trim, disposal. No pressure and no expiring discounts.

Step 04

Install day

Old units out, new ones in, insulated, sealed and trimmed. Floors covered, site swept, old glass hauled off.

Recent work

Recent Window Replacement Projects in Denver Metro

Reviews

Reviews from Denver Window Replacement Customers

★★★★★

“Juan C. Velazquez measured everything himself and the quote was the price we paid. The crew covered the floors, worked two full days and you would not know anyone had been in the house. The difference in road noise alone was worth it.”

Marisol R.
Full house, 11 windows

★★★★★

“Our old slider took two hands and a shoulder to move. The new one glides with a finger. They were on time both days and cleaned up the old track properly instead of just covering it.”

Dan K.
Sliding patio door

★★★★★

“Straight answers, no upselling. He told us two of the windows were fine and only needed new hardware, which saved us money. That is why we called him back for the rest of the house.”

Priya S.
Kitchen and bath windows

Questions

The things people ask first.

At Velazquez Windows, professional window installation in Denver starts at $250 per window, with our popular 70-Series replacement windows starting at $340. Final pricing depends on window size, style, and material. Call 720-327-5783 for a free, no-pressure estimate.

Most Denver homes take 1–2 days. A single window installation takes about 30–60 minutes once our crew is on-site. We handle measurement, removal, installation, and cleanup.

For Denver’s sunny days and cold winters, we recommend energy-efficient vinyl and fiberglass windows with Low-E glass. They handle UV exposure and temperature swings well while lowering energy bills.

Yes. We serve the full Denver Metro area including Aurora, Lakewood, Arvada, Westminster, Thornton, Centennial, Littleton, Englewood, Wheat Ridge, Broomfield, and Commerce City.

In most cases, like-for-like window replacement in Denver does not require a permit, but structural changes might. We guide you through local requirements during your free estimate.

As an owner-operated Denver company, we offer transparent
starting prices, direct communication with the owner, faster
scheduling, and accountability that national chains can’t match —
at a better price.

Next step

Ready for a number you can trust?

Send a few details and we will arrange a free in-home measure at a time that suits you.