Window & Door Installation in Nashville, TN

DEM Windows & Doors is a window and door contractor serving Nashville and the greater Middle Tennessee region. From energy-efficient window installation to secure entry doors, we help homeowners across Davidson County and the surrounding counties upgrade their homes with clean, professional installation, free in-home estimates, and flexible financing. Every project is backed by a 5.0 rating from 25 Google reviews and full service in both English and Spanish.

Professional window and door installation for homes across Nashville and Middle Tennessee. See why local homeowners rate us 5.0 on our Google Business Profile and trust DEM Windows & Doors for windows, doors, and repairs across the Nashville metro.

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In-home Estimates

Windows, Doors, and Repairs for Nashville Homes

Old windows and worn doors quietly drive up energy bills, let in drafts and street noise, and make a home harder to secure. Most Nashville homeowners want a local team that shows up on time, quotes an honest price, and finishes clean, instead of waiting weeks on a big-box installer. DEM Windows & Doors handles the full job in-house, from measurement to final seal, with free in-home estimates and financing so the upgrade fits your budget.

Window Installation

New windows cut cooling and heating costs, block outside noise, and refresh curb appeal. We install double-hung, casement, and energy-efficient double-pane windows sized and sealed for Middle Tennessee weather, with a free in-home estimate before any work begins.

Window & Door Repair

Not every problem needs a full replacement. We repair broken glass, failed seals, drafty frames, faulty hardware, and doors that stick or will not close, often with same-day estimates so your home stays secure.

Door Installation

A solid, well-hung door improves security, sealing, and the first impression of your home. We install and replace entry doors, patio and sliding doors, and front doors, with clean fit and finish that keeps drafts and moisture out.

Metal Roofing

We also install metal roofing for homeowners upgrading the full exterior. Ask about it during your window or door estimate.

Gutter Installation

Middle Tennessee storms move a lot of water fast. Seamless gutters protect your siding, windows, and foundation from water damage, and they pair naturally with a window or door upgrade.

10+

Years of Hands-On Installation Experience

DEM Windows and Doors, Corp BBB Business Review

Quality Work. Honest Service. Local Expertise.

Nashville's Locally Owned Window and Door Company

DEM Windows & Doors is a locally owned, Latino-owned company serving Nashville and Middle Tennessee homeowners in English and Spanish. We are BBB Accredited with an A+ rating, licensed, and trusted as a subcontractor by Home Depot and other large organizations, so the same crews that back national brands work directly on your home.

Free, no-obligation estimates

We assess your windows and doors in person and quote an honest price with no pressure.

Fast, reliable turnaround times

We show up on time, work clean, and finish on schedule, a point our Google reviewers mention again and again.

Residential & commercial service

From single-window replacements to full-home projects, we handle jobs of every size.

English & Spanish Service

Talk through your project in the language you are most comfortable with.

Nashville's Humidity and Storm Season and What They Do to Your Windows and Doors

Nashville summers run hot and humid, winters bring hard freezes, and Middle Tennessee sits in an active severe-weather corridor with strong spring and summer storms. Those swings push old single-pane windows and worn door seals to leak air, drive up cooling and heating bills, and let moisture warp frames over time.

DEM Windows & Doors installs energy-efficient double-pane and double-hung windows and properly sealed entry doors built for Middle Tennessee heat, humidity, and storm exposure. Every installation includes tight weather sealing and a free in-home assessment, so your home stays comfortable and cheaper to run all year.

Window Comparison Table

Not sure which windows fit your home and your budget? Here is how the most popular options compare for the Nashville climate.

Window Type	Best For	Energy Efficiency	Nashville Climate Fit
Double-Hung	Classic homes and easy cleaning, both sashes open and tilt in	High	Strong airflow for humid summers and simple to seal tight against winter drafts
Casement	Kitchens and hard-to-reach spots, opens wide with a crank	High	Seals firmly when closed, which helps during heavy storms and wind
Double-Pane / Energy-Efficient	Homeowners focused on lower energy bills and comfort	Highest	Two panes and insulated glass fight both summer heat gain and winter heat loss
Sliding	Wide openings and modern layouts, easy day-to-day use	Good	Simple operation and a clean look, best paired with quality weather stripping

5.0 Rating from 25 Nashville Homeowners

Homeowners across Nashville and Middle Tennessee consistently mention the same things: on-time arrival, polite crews, clean work, and windows and doors that look great. Read the full set of reviews on our Google Business Profile.

Flexible Financing for Your Windows and Doors

A window or door upgrade is a real investment, and it should not have to wait. Through GoodLeap, you can spread the cost into simple monthly payments with a quick application and fast credit decisions. Ask about financing during your free in-home estimate and we will walk you through the options.