Door Installation & Replacement in Thornton, CO
Find trusted professionals, understand costs, and track repairs in PropDoctor
Cost Range
$345–$2,300
Overview
Install new interior or exterior doors, or replace existing ones. Includes entry doors, patio doors, storm doors, interior passage doors, and sliding barn doors. Proper installation ensures security, weather sealing, and smooth operation.
Thornton Climate Considerations (mixed dry)
Common Signs You Need Door Installation & Replacement
- • Door not closing or latching properly
- • Visible daylight around exterior door
- • Draft coming through door
- • Door is warped, cracked, or damaged
- • Upgrading for security or aesthetics
- • Difficulty locking door
Door Installation & Replacement Cost in Thornton
Low
$345
Average
$1,323
High
$2,300
DIY vs. Call a Pro
Replacing a pre-hung interior door is a common DIY project. Remove the old door and frame, set the new pre-hung unit in the opening, shim for plumb and level, nail in place, and add trim. Exterior doors require more weathersealing knowledge.
Call a professional when:
Hire a professional for exterior entry doors (proper weathersealing is critical), sliding patio doors, structural modifications to door openings, or if the rough opening needs resizing.
Contractors in Thornton
Thornton Housing Market
Median Home Price
$509,900
Homes for Sale
156
Price per Sq Ft
$235
Local Pros
600
Home Service Professionals Near Thornton
Median Household Income
$100,985
Median Home Value
$482,200
Median Rent
$1,810/mo
Homeownership Rate
73.1%
Population
142,878
Median Year Built
1996
Source: U.S. Census Bureau, ACS 2023 5-Year Estimates
Track This in PropDoctor
Door Installation & Replacement
Date
April 2026
Cost
$1,323
Vendor
Your local pro
Warranty
5-year material warranty
Thornton average: $345–$2,300
Before
Issue documented with photos
After
Repair completed, area sealed
Materials Used
Warranty Details
5-year material warranty
Auto-Checkup Created
"Door Inspection" — every 24 months
Property Health Score
Fair
exterior category +8 pts(65 → 73)
Your health score is calculated based on documentation completeness, maintenance currency, warranty coverage, and investment tracking.
Maintenance Plan for Thornton
Recommended Maintenance Plan — Thornton, Colorado
Key Risks
- • Expansive bentonite clay (Colorado)
- • Frost heave
- • Settling from dry conditions
- • Severe hailstorms
- • Heavy snow loads
Schedule
Visual inspection (DIY)(DIY)
Professional door installation & replacement
Estimated: $300–$2000
Thornton-Specific Tips
- • Thornton has high rodents pressure — include pest inspection with structural work
Find Help with SmartSearch
Find a contractor near me
I found several contractors in your area. Here are the top results:
Smith & Sons
Connectedcontractor
J&R Home Services
contractor
Log my door installation & replacement in PropDoctor
I'll help you log this. I've pre-filled the details — review and submit:
SmartSearch understands 51 action types across scheduling, vendor discovery, and home maintenance.
Related Services in Thornton
Window Replacement
Replace old, drafty, or damaged windows with modern energy-efficient units. New windows reduce energy costs, improve comfort, reduce outside noise, and enhance your home's appearance.
Interior House Painting
Professional interior painting for walls, ceilings, trim, and doors. Includes surface preparation, priming, and applying quality paint for a clean, lasting finish that transforms your living spaces.
General Home Repair
Address a wide range of minor home repairs in a single visit including squeaky doors, loose handles, running toilets, cracked caulk, patching drywall, and adjusting cabinet hardware. A licensed handyman saves time by bundling several small fixes into one appointment.
Colorado Regulations
Building Code: IRC 2018
Seller Disclosure: Sellers must complete a Seller's Property Disclosure form. Colorado also requires specific lead-based paint, meth lab, and radon disclosures.
Natural Disaster Risks: Hailstorms, Wildfires, Blizzards, Flooding