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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon1.2k+
    Verified window and door contracting services reviews

Find Window and door contractors in Thornton

"All expectations met. Windows delivered earlier than expected. Very professional and expert workmanship. Would recommend this company to anyone."

Linda L on October 2023

One Window At A Time is a Installation based company. We specialize in building and installing windows to your homes opening. This insures less loss of Glass space and No water or Air infiltration. Call today. Best install #1.

"All expectations met. Windows delivered earlier than expected. Very professional and expert workmanship. Would recommend this company to anyone."

Linda L on October 2023


Avatar for Colorado Outdoor Life, LLC

Colorado Outdoor Life, LLC

4.92(
75
)
Approved Pro

Colorado Outdoor Life, LLC

4.92(
75
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
11 years of experience

Welcome to Colorado Outdoor Life LLC / Window Wells CO! We do window well replacements, window well covers, window well maintenance, grading and sloping, and landscaping. We are committed to providing excellent customer service and ensuring that our clients are completely satisfied with our work. We offer free estimates and will work with you to find the best solution for your home’s unique needs. Our team has the knowledge and expertise to handle any type of window well or landscaping project, no matter how big or small. Call us today to learn more about how we can help you!

"Rick and Cindy, the owners of Colorado Outdoor Life, are amazingly friendly, knowledgeable and ethical business professionals. I really enjoyed working with them and Victor, the Lead of the construction crew. Victor is so friendly and easy to talk with - the whole team was just great! I had 31+ year old window wells that were a mess - rusty, holes in the sides, water was beginning to seep into the side walls. In 3 days, Victor and his team dug out the old and installed the new window wells - not window covers - window wells! That is Extremely hard work and the team was just wonderful. The men worked well together and they cleaned up the site when they were done. I highly recommend Colorado Outdoor Life. Rick and Cindy are an amazing team and Victor and his crew cannot be beat! I feel fortunate to have found this incredible company!!"

Linda B on September 2025

Welcome to Colorado Outdoor Life LLC / Window Wells CO! We do window well replacements, window well covers, window well maintenance, grading and sloping, and landscaping. We are committed to providing excellent customer service and ensuring that our clients are completely satisfied with our work. We offer free estimates and will work with you to find the best solution for your home’s unique needs. Our team has the knowledge and expertise to handle any type of window well or landscaping project, no matter how big or small. Call us today to learn more about how we can help you!

"Rick and Cindy, the owners of Colorado Outdoor Life, are amazingly friendly, knowledgeable and ethical business professionals. I really enjoyed working with them and Victor, the Lead of the construction crew. Victor is so friendly and easy to talk with - the whole team was just great! I had 31+ year old window wells that were a mess - rusty, holes in the sides, water was beginning to seep into the side walls. In 3 days, Victor and his team dug out the old and installed the new window wells - not window covers - window wells! That is Extremely hard work and the team was just wonderful. The men worked well together and they cleaned up the site when they were done. I highly recommend Colorado Outdoor Life. Rick and Cindy are an amazing team and Victor and his crew cannot be beat! I feel fortunate to have found this incredible company!!"

Linda B on September 2025


Avatar for North South East and West LLC Home Solutions

North South East and West LLC Home Solutions

4.97(
39
)
Approved Pro

North South East and West LLC Home Solutions

4.97(
39
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
12 years of experience

North South East and West LLC Home Solutions, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Juan was great! He is a reliable handyman who is also highly skilled and professional. I will continue to request his services when I need work done. "

Rachelle O on August 2025

North South East and West LLC Home Solutions, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Juan was great! He is a reliable handyman who is also highly skilled and professional. I will continue to request his services when I need work done. "

Rachelle O on August 2025


Avatar for In the Grain Houseworks

In the Grain Houseworks

4.98(
87
)
Approved Pro

In the Grain Houseworks

4.98(
87
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
24 years of experience

In the Grain HouseWorks, is your high quality professional for northern suburbs! My experience and craftsmanship shines through on every job, big or small. I pride myself on attention to detail and building long-lasting business relationships with my clients. I have been working on homes for over 21 years. Call today for a free estimate!

"Yes the job was complete, he was very nice and professional and even did extra work on my lock. "

Julianna G on September 2025

In the Grain HouseWorks, is your high quality professional for northern suburbs! My experience and craftsmanship shines through on every job, big or small. I pride myself on attention to detail and building long-lasting business relationships with my clients. I have been working on homes for over 21 years. Call today for a free estimate!

"Yes the job was complete, he was very nice and professional and even did extra work on my lock. "

Julianna G on September 2025


Avatar for Cransten, Inc. DBA Cransten Handyman and Remodeling

Cransten, Inc. DBA Cransten Handyman and Remodeling

4.75(
232
)
Approved Pro

Cransten, Inc. DBA Cransten Handyman and Remodeling

4.75(
232
)
Approved Pro
Customers say: True professional
9 years of experience
Free onsite estimate

We built our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"YES! Matt, repaired and replaced multiple projects. The front porch fascia was worsening everyday, the garage entry door had deteriorated to the concrete and the motion detector’s sensors required adjustments. Tyler began the request with professionalism and knowledge of my requests better than myself. I appreciate the repairs requests being understood. Matt arrived timely on the date promised. His work was outstanding, professionally explained and completed. We followed his instructions and our home smiles! Thank you for your professionalism, honesty and kindness. I will call again."

Francesca R on December 2025

We built our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"YES! Matt, repaired and replaced multiple projects. The front porch fascia was worsening everyday, the garage entry door had deteriorated to the concrete and the motion detector’s sensors required adjustments. Tyler began the request with professionalism and knowledge of my requests better than myself. I appreciate the repairs requests being understood. Matt arrived timely on the date promised. His work was outstanding, professionally explained and completed. We followed his instructions and our home smiles! Thank you for your professionalism, honesty and kindness. I will call again."

Francesca R on December 2025


Avatar for EGRESS INC

EGRESS INC

4.90(
61
)
Approved Pro

EGRESS INC

4.90(
61
)
Approved Pro
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
25 years of experience

Adding a professionally installed egress window & well not only protects your family by providing a reliable escape, it also transforms your basement living area with beautiful, natural light. Egress, Inc is the largest egress window & well specialist in the Rocky Mountain Region. From simple expansions to engineer structural modifications, Egress Inc has the knowledge and experience to professionally & efficiently handle all your egress window & well needs. In addition to egress windows our services include water mitigation, replacement windows and walkout basement options, in addition to replacement window wells of any size, in a variety of options including steel, fiberglass, concrete and custom-designed & hand-built stone and timber. Owners Jim & Loralee Dischner share their 30 years of construction & public relations experience to provide you with expert installations and outstanding customer service. Licensed & insured, we guarantee our work which helps ensure your ultimate satisfaction. Egress, Inc supports trusted and caring employees, not fly-by-night subcontractors. The Egress, Inc family sincerely cares about your project work together to make it flow seamlessly from start to finish. Let Egress, Inc transform your basement into a beautiful and safe living area!

"They are fantastic workers. I felt so comfortable with Jim, the boss and his crew, I left for work for a few hours."

Nancy D on March 2022

Adding a professionally installed egress window & well not only protects your family by providing a reliable escape, it also transforms your basement living area with beautiful, natural light. Egress, Inc is the largest egress window & well specialist in the Rocky Mountain Region. From simple expansions to engineer structural modifications, Egress Inc has the knowledge and experience to professionally & efficiently handle all your egress window & well needs. In addition to egress windows our services include water mitigation, replacement windows and walkout basement options, in addition to replacement window wells of any size, in a variety of options including steel, fiberglass, concrete and custom-designed & hand-built stone and timber. Owners Jim & Loralee Dischner share their 30 years of construction & public relations experience to provide you with expert installations and outstanding customer service. Licensed & insured, we guarantee our work which helps ensure your ultimate satisfaction. Egress, Inc supports trusted and caring employees, not fly-by-night subcontractors. The Egress, Inc family sincerely cares about your project work together to make it flow seamlessly from start to finish. Let Egress, Inc transform your basement into a beautiful and safe living area!

"They are fantastic workers. I felt so comfortable with Jim, the boss and his crew, I left for work for a few hours."

Nancy D on March 2022


Joseph Huisman

4.96(
34
)
Approved Pro

Joseph Huisman

4.96(
34
)
Approved Pro
Super Service Award
Customers say: True professional
25 years of experience
Free onsite estimate

Joseph Huisman is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"He contacted me directly, gave me a quote and scheduled the job for the next weekend. He did a great job and I've already got him lined up for another."

Phil J on August 2025

Joseph Huisman is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"He contacted me directly, gave me a quote and scheduled the job for the next weekend. He did a great job and I've already got him lined up for another."

Phil J on August 2025


"They did such an amazing job. We love our new egress window."

Robert H on October 2025

We want to understand your vision and if necessary, break through typical construction boundaries to capture it. Everyone's situation is different, and we love the challenge. Our focus is creating something special for you based on your needs and your lifestyle.

"They did such an amazing job. We love our new egress window."

Robert H on October 2025


Avatar for GS Exterior Experts

GS Exterior Experts

4.96(
129
)
Approved Pro

GS Exterior Experts

4.96(
129
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
26 years of experience

GS Exterior Experts is a Local exterior remodeling company since 1999 specializing in Residential FULL HOUSE SIDING REPLACEMENT-WINDOWS-DECKS & ROOFING. View some of our reviews and you will see that we consistently exceed our expectations! Our customers come first, and every job is complete in a timely manner with 100% satisfaction. We offer free estimates and financing on all our services and insure you our prices are the best and most important quality. We are honored to win the Angie's list super service award every year since 2011. We are also a James Hardie ELITE preferred contractor in CO which means you get the best of James Hardie installations with a full non pro rated warranty. GS Exterior Experts is licensed and insured BBB members with very good customer satisfaction rating. Setting ourselves apart by offering unique craftsmanship installation, providing your home unique curb appeal that sets your home apart from your neighbors for years to come.

"From start to finish, the GS folks were exceptional. Keith Vigil clearly explained details of the project to me, Sandra in the office was always there to field my questions, the demo and siding crew were hard working and pleasant under the guidance of Edwin's daily presence, and Oswald faithfully and capably handled any finishing touches to the project. This is a five-star company with devoted and talented employees!"

Pam L on November 2025

GS Exterior Experts is a Local exterior remodeling company since 1999 specializing in Residential FULL HOUSE SIDING REPLACEMENT-WINDOWS-DECKS & ROOFING. View some of our reviews and you will see that we consistently exceed our expectations! Our customers come first, and every job is complete in a timely manner with 100% satisfaction. We offer free estimates and financing on all our services and insure you our prices are the best and most important quality. We are honored to win the Angie's list super service award every year since 2011. We are also a James Hardie ELITE preferred contractor in CO which means you get the best of James Hardie installations with a full non pro rated warranty. GS Exterior Experts is licensed and insured BBB members with very good customer satisfaction rating. Setting ourselves apart by offering unique craftsmanship installation, providing your home unique curb appeal that sets your home apart from your neighbors for years to come.

"From start to finish, the GS folks were exceptional. Keith Vigil clearly explained details of the project to me, Sandra in the office was always there to field my questions, the demo and siding crew were hard working and pleasant under the guidance of Edwin's daily presence, and Oswald faithfully and capably handled any finishing touches to the project. This is a five-star company with devoted and talented employees!"

Pam L on November 2025


Avatar for GS Exterior Experts Corp.

GS Exterior Experts Corp.

5.00(
17
)
Approved Pro

GS Exterior Experts Corp.

5.00(
17
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
26 years of experience

When it comes to enhancing the aesthetic appeal and durability of your home through James Hardie siding, choosing GS Exterior Experts for your siding replacement is a decision that prioritizes quality, expertise, and customer satisfaction. 1. James Hardie Specialists: At GS Exterior Experts, we specialize in James Hardie siding installation. Our team of professionals is well-versed in the unique features and installation techniques associated with James Hardie products. This specialization ensures that your siding replacement is carried out with precision and expertise, maximizing the performance and longevity of your siding.

"Oswald and his crew were fast, efficient and the house looks amazing! What an improvement from what we had before. Ernest was great too, as he handled our confusion of "fascia and soffits" but we got there in the end. After siding was installed, we used Bermudez Paint, and they arrived the next day to start their project. They were done 3 days later, thanks to rain delays. I highly recommend Bermudez Paint as well. Their team was also amazing, fast, and incredibly polite."

Christine R on July 2024

When it comes to enhancing the aesthetic appeal and durability of your home through James Hardie siding, choosing GS Exterior Experts for your siding replacement is a decision that prioritizes quality, expertise, and customer satisfaction. 1. James Hardie Specialists: At GS Exterior Experts, we specialize in James Hardie siding installation. Our team of professionals is well-versed in the unique features and installation techniques associated with James Hardie products. This specialization ensures that your siding replacement is carried out with precision and expertise, maximizing the performance and longevity of your siding.

"Oswald and his crew were fast, efficient and the house looks amazing! What an improvement from what we had before. Ernest was great too, as he handled our confusion of "fascia and soffits" but we got there in the end. After siding was installed, we used Bermudez Paint, and they arrived the next day to start their project. They were done 3 days later, thanks to rain delays. I highly recommend Bermudez Paint as well. Their team was also amazing, fast, and incredibly polite."

Christine R on July 2024

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Window Door Contractors questions, answered by experts

The width of your door jamb should match your wall thickness exactly, so it depends on your wall. For standard door openings, the width is equal to the width of a 2-by-4-inch  stud, plus the width of the drywall on both sides—about 1/2 inch each—which comes out to 4 9/16 inches. Block walls and framed walls that use 2-by-6-inch framing require a door jamb that’s 6 9/16 inches. You should always measure your finished wall thickness to get an accurate width for your door jamb material.

It’s certainly easier to paint a door while it’s still on its hinges, but you may get better results if you remove it from the hinges. Painting a door off the hinges allows you to work on it horizontally, making prep work easier, reducing drips, and allowing undisturbed drying time.

Before attempting to reinforce an apartment door, speak to the property owner. If the door hasn’t been updated in a while, the landlord may offer to cover the cost of a professional locksmith or your expense of this security update. Rekeying a door can be a costly and lengthy affair, so try low-impact, inexpensive tricks—like installing a deadlock or a door jammer—first.

French doors that open to exterior spaces are often installed to swing inward, as this makes them more secure than outward-swinging doors, due to the interior hinges being inaccessible from the outside. For interior doors, it’s personal preference which direction to hang your doors, but it’s common to have them open into the larger of the two spaces they’re separating.

You should prime interior doors before painting for the best results. If you do paint directly on the wood, you could see some of the grain patterns show through the paint, in which case you’d need to apply additional coats. Priming the surface before painting will reduce the number of coats and can better cover the grain pattern for a clean, finished look.

The Thornton, CO homeowners’ guide to window and door contracting services

From average costs to expert advice, get all the answers you need to get your job done.

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