11 Best Window Companies in San Luis Obispo, CA (2024 Reviews)

If you’re thinking about upgrading to new windows, our guide to the best window installation companies can help.

We analyzed all the top-rated window companies in San Luis Obispo and selected the best 11 based on:

  • Customer reviews
  • Window installation expertise
  • Popularity with home-owners like you
EcoWatch Local Advisors

By EcoWatch Local Advisors

Updated June 24, 2024

Why you can trust EcoWatch

Our panel of energy experts work tirelessly to create unbiased reviews and informative content to help homeowners make educated decisions. No other windows site has covered energy efficiency and sustainability as long as EcoWatch, which means we're going to help you find windows replacements that will save on your energy bill and put more money back in your wallet.

Although eco-friendly energy sources like wind and solar are important when it comes to lowering your carbon footprint, improving your home’s efficiency can also have a large impact on home energy conservation. Poor windows can make your home uncomfortable in the summer or winter.

Installing energy-efficient windows on your house can help you save money each month on your energy bills — and you can help the environment, too.

Efficient windows are especially important in San Luis Obispo, where summers are long and hot. According to Energy Star, making the switch to energy-efficient windows can save the average homeowner up to $521 each year.

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Energy-Efficient Features

DaBella

★★★★★
4.0
  • Great warranty
  • Friendly sales representatives
  • Offers good financing options

Best Window Installation & Replacement Companies in San Luis Obispo

The EcoWatch Reviews team evaluated dozens of installers in San Luis Obispo to find the best window companies for our readers. We assessed the companies based on their energy-efficient offerings, coverage area, price, local experience, customer service and more.

Window World logo
FAST QUOTE
as little as 30 seconds
Best Affordability

Window World

★★★★★
BBB Rating: A+
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Large serice area
  • Pros icon Low prices relative to competitors
  • Pros icon Great industry reputation
  • Pros icon Lifetime warranty
Cons:
  • Pros icon Quality of service will depend on your area

Window World provides windows expertise in San Luis Obispo. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the window installation business, and it has become one of the most respected companies in the business.

It has established itself as a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.

Energy Efficiency of Window World Windows

Window World carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.

How much does Window World cost in San Luis Obispo?

Even though prices are not available on Window World’s website, it's known for offering some of the most affordable window installations around. The best way to know for sure is to receive a free quote from the company.

Milgard Windows & Doors logo
FAST QUOTE
as little as 30 seconds
Excellent Reputation

Milgard Windows & Doors

★★★★★
BBB Rating: A
Locations: West Coast
Founded: 1962
Pros:
  • Pros icon EnergyStar Partner
  • Pros icon Wide network of installers
  • Pros icon Lifetime warranty available
Cons:
  • Pros icon Entails hiring third-party contractors
  • Pros icon Limited additional services

Milgard Windows & Doors provides the best local installation in San Luis Obispo. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. This company has 60 years of experience in the window installation business, and it has become one of the most respected companies in the business.

It has established itself as a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience.

Energy Efficiency of Milgard Windows & Doors Windows

Milgard Windows & Doors carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. The company manufactures its own products, which gives it the freedom to make custom windows based on the climate. The company designs its own vinyl compounds and profiles to ensure a heat-stable product that performs as advertised.

How much does Milgard Windows & Doors cost in San Luis Obispo?

Even though prices are not available on Milgard’s website, it offers different kinds of windows at varying price points. The best way to know for sure is to receive a free quote from the company.

Renewal by Andersen logo
FAST QUOTE
as little as 30 seconds
Best Overall

Renewal by Andersen

★★★★★
BBB Rating: A
Locations: Nationwide
Founded: 1995
Pros:
  • Pros icon Great industry reputation
  • Pros icon Award-winning company
  • Pros icon Member of US Green Building Council
  • Pros icon Manufactures products in-house
Cons:
  • Pros icon No lifetime warranty
  • Pros icon More expensive than competition

Renewal by Andersen provides the best availability in San Luis Obispo. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the window installation business, and it has become one of the most respected companies in the business.

It has established itself as a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.

Energy Efficiency of Renewal by Andersen Windows

Renewal by Andersen carries some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.

How much does Renewal by Andersen cost in San Luis Obispo?

Even though prices are not available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. The best way to know for sure is to receive a free quote from the company.

We’ve recommended providers with good reputations, but note that some national companies have independently owned locations in San Luis Obispo, so your service may differ depending on your local crew. We have tried to be unbiased and transparent by describing pros and cons for every company we reviewed.

More Window Companies in San Luis Obispo

Arroyo Grande Glass & Mirror

Arroyo Grande, CA
4.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Energy-Efficient Options
  • Service icon Skylights
  • Service icon Mirrors
  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Custom Glass
  • Service icon Custom Window Designs
  • Service icon Glass Doors

Website: https://www.arroyograndeglass.com/
Address: 1012 E Grand Ave, Arroyo Grande, CA 93420
Phone: (805) 489-6900

Los Osos Glass & Window Inc

Baywood-Los Osos, CA
3.1
★★★★★
  • Pros icon Free assessment
  • Pros icon Good Customer Service
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Doors
  • Service icon Window Replacement/Installation
  • Service icon Glass Showers

Website: http://www.losososglass.com/
Address: 2118 9th St, Baywood-Los Osos, CA 93402
Phone: (805) 528-0109

Central Coast Screens

San Luis Obispo, CA
3.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Screen Repair
  • Service icon Window Replacement/Installation
  • Service icon Bay Windows

Website: https://centralcoastscreens.com/
Address: 1106 Atascadero St, San Luis Obispo, CA 93405
Phone: (805) 704-6608

Contractors Glass Company

San Luis Obispo, CA
2.9
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Free assessment
  • Pros icon Educational Website
  • Pros icon Price Transparency

Services Offered

  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Window Replacement/Installation

Website: http://www.contractorsglassco.com/
Address: 60 Prado Rd, San Luis Obispo, CA 93401
Phone: (805) 543-0871

Monarch Window

San Luis Obispo, CA
2.8
★★★★★
  • Pros icon Good Customer Service
  • Pros icon Educational Website

Services Offered

  • Service icon Metal Frames
  • Service icon Window Replacement/Installation
  • Service icon Wood Frames
  • Service icon Skylights
  • Service icon Glass Doors

Website: http://www.monarchwindow.com/
Address: 201 Bridge St, San Luis Obispo, CA 93401
Phone: (805) 242-2059

Artisan Windows and Doors

San Luis Obispo, CA
2.8
★★★★★
  • Pros icon Price Transparency

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Glass Doors

Website: http://www.artisanwd.com/
Address: 179 Granada Dr #4, San Luis Obispo, CA 93401
Phone: (805) 852-7001

Templeton Glass

Paso Robles, CA
4.7
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Glass Doors
  • Service icon Mirrors
  • Service icon Custom Glass
  • Service icon Window Replacement/Installation

Website: http://www.templetonglass.com/
Address: 3850 Ramada Dr Suite B2, Paso Robles, CA 93446
Phone: (805) 434-3438

Artistic Glass

Atascadero, CA
3.0
★★★★★
  • Pros icon Price Transparency
  • Pros icon Free assessment
  • Pros icon Good Customer Service

Services Offered

  • Service icon Glass Showers
  • Service icon Glass Doors
  • Service icon Window Replacement/Installation

Website: https://www.artisticshowerdoorca.com/
Address: 8408 El Camino Real, Atascadero, CA 93422
Phone: (805) 400-9241

Construction Windows, LLC

Paso Robles, CA
5.0
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Educational Website
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Fiberglass Frames
  • Service icon Metal Frames
  • Service icon Vinyl Frames
  • Service icon Custom Window Designs
  • Service icon Glass Doors

Website: https://constructionwindows.com/
Address: 3200 Riverside Ave #120, Paso Robles, CA 93446
Phone: (800) 995-6059

A-1 Glass, LLC

Paso Robles, CA
4.5
★★★★★
  • Pros icon Free assessment
  • Pros icon Price Transparency
  • Pros icon Good Customer Service

Services Offered

  • Service icon Window Replacement/Installation
  • Service icon Mirrors
  • Service icon Metal Frames
  • Service icon Vinyl Frames
  • Service icon Fiberglass Frames
  • Service icon Glass Showers

Website: http://www.a1glasswindows.com/
Address: 705 Paso Robles St, Paso Robles, CA 93446
Phone: (805) 227-6697

Paso Robles Glass

Paso Robles, CA
4.6
★★★★★
  • Pros icon Price Transparency
  • Pros icon Good Customer Service
  • Pros icon Free assessment

Services Offered

  • Service icon Tempered Glass
  • Service icon Window Replacement/Installation
  • Service icon Glass Showers
  • Service icon Mirrors
  • Service icon Metal Frames
  • Service icon Glass Doors

Website: http://pasoroblesglass.com/
Address: 609 22nd St, Paso Robles, CA 93446
Phone: (805) 238-4014
San Luis Obispo Window Cost Calculator

Calculate how much you can expect to pay for window installation and replacement in San Luis Obispo, CA using our customized window cost calculator.

Estimated Window Cost:
161 homeowners have requested a free estimate in the last 3 days.

Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.

How Installing Energy-Efficient Windows in San Luis Obispo Saves You Money

Energy-efficient windows can benefit you in more than one way. Here are a few reasons you may want to make the switch:

  • Save on power bills: Once you upgrade to energy-efficient windows, you can see a reduction in your bills by about 12% because you’ll use less energy to heat or cool your home.
  • Reduce your carbon footprint: Decreasing how much energy you use also lowers your carbon emissions. You could reduce it by 117 pounds per year on average.
  • Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
  • Protect your investment: When your home is on the older side, your windows could also be outdated or leaky. Keeping your windows up to date is an important part of maintaining your property and its real estate value.

Estimated Cost of Window Replacement in San Luis Obispo

Each window replacement company provides various services and has different costs depending on several factors.

How Much Do New Windows Cost?

According to our market research, the average cost to replace a single window is about $600. However, window installation costs can range from $200 to $1,200 per window. But costs will vary significantly depending on your location, the current condition of your home, the number of windows you need and the quality of your products. Many window companies also offer replacement door installations and other add-ons like coating, shutters, baths and more. These extra services will increase overall project costs.

Keep in mind that energy-efficient windows may cost more, but Energy Star estimates the upgrade will save you between $101 and $583 a year when you replace single-pane windows and between $27 and $197 per year when replacing double-pane, clear glass windows. These savings vary based on your local climate, energy rates and individual home characteristics.

We recommend requesting free quotes from multiple window installers to find the one that works best for you.

What Services do Window Installers Offer?

There are typically two kinds of window installation services: full-frame and pocket installations.

Full-frame installations are necessary when you want to change the style of your windows or your window has significant deterioration. With this service, your professionals will replace the complete window, including the sill, frame and trim. Pocket installations (also known as retrofits) are when you replace a window within its existing frame. Pocket installations are on the simpler end and won’t cost as much, but you can’t do this type of installment if you have any pre-existing rot or water damage.

If you’re still trying to decide which type of installation to get, you can talk to your installer and get their recommendation. The choice mostly is influenced by how old the frames are and if there’s any damage present.

Power Home

★★★★★
4.5
  • Uses eco-friendly materials
  • Well-trained, certified installers
  • Lifetime or lengthy warranty
Next-Day Appointments Available
Get Estimate

Best for Residential Windows

Window Nation

★★★★★
4.0
  • Custom Designs
  • Wide variety of products and services
  • Manufactures products in-house

Best Energy-Efficient Features

DaBella

★★★★★
4.0
  • Great warranty
  • Friendly sales representatives
  • Offers good financing options

How We Choose the Best Window Installers in San Luis Obispo

The EcoWatch Reviews team differs from other reviewers since we’re examining these companies through a sustainability lens. Along with energy efficiency, we evaluated each installer and assigned rankings using the following methodology:

Service Area

This one is pretty self-explanatory, but we’ve chosen to highlight window installation companies that serve a wide variety of states and cities so you can find the right window installation company near you.

Work Quality

We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each installer included on this list to make sure its contractors are well-qualified and that the company has received lots of positive customer feedback to vouch for its service.

Customer Reviews

Another self-explanatory yet super important review factor is customer feedback. If most customers don’t have good things to say about their experience with a certain company, you won’t see it featured on EcoWatch.

Cost

Cheaper windows don’t necessarily mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing providers’ prices, we gave higher scores to companies with reasonable prices and accessible financing rather than “cheaper” services.

Warranty

As discussed, windows are a considerable investment, so you’ll want to make sure that investment is protected. Window installation companies that provide lengthy warranties for products, parts and labor rank higher with EcoWatch.

Years of Experience

Lastly, we like to see companies that have a good track record in the industry. Window installation companies that have more years of experience earn higher rankings by our standards. We like to see at least ten years of experience.

San Luis Obispo, CA Window Replacement FAQs

What is the typical cost to install windows?

The typical cost to replace a single window ranges from $450 to $650. There are several factors that influence the price, such as styles and sizes of windows, how energy-efficient the windows are, your property’s location, the materials used in designing the windows, the number of windows and local labor costs.

What are the most common types of replacement windows?

There are several different kinds of windows you can get for your home, including transom windows, slider windows, casement windows, picture windows, awning windows, double-hung and single-hung windows and bay windows.

Can you replace your own windows?

Even though it is possible to install your own windows, doing so is time-consuming and requires a lot of handiness. Hiring a professional can help ensure that the job is done properly and that you won’t have to spend the time and effort to do it yourself.

Should I replace my windows all at the same time?

If you’re upgrading your windows because of energy-efficiency, replacing all the windows together is the only way to gain that benefit. On the other hand, if you have only a few windows that are broken or leaky, you can replace just those.