Top-rated sunroom and patio pros.

Get matched with top sunroom and patio pros in Mercer Island, WA

There are 15 highly-rated local sunroom and patio pros.

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TRUSTED BY MERCER ISLAND, WA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon22
    Verified sunroom and patio services reviews

Find Sunroom and patio pros in Mercer Island

Avatar for Sentri Homes

Sentri Homes

New on AngiNew on Angi
Approved Pro

Sentri Homes

New on AngiNew on Angi
Approved Pro
531 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.


Avatar for OCF Construction Inc

OCF Construction Inc

5.00(
5
)
Approved Pro

OCF Construction Inc

5.00(
5
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
95 local quotes requested

We offer a variety of remodeling services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"The contractor and his team were honest, hardworking, and respectful. They are good people who know their jobs well and completed the work quickly and efficiently."

Fartun A on October 2025

We offer a variety of remodeling services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"The contractor and his team were honest, hardworking, and respectful. They are good people who know their jobs well and completed the work quickly and efficiently."

Fartun A on October 2025


Avatar for PAL Properties LLC

PAL Properties LLC

5.00(
3
)
Approved Pro

PAL Properties LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

At PAL Properties, LLC, we're excited to earn your business. Locally owned and operated, we are known in the area for our prompt service and attention to detail. We specialize in residential home renovation and design. Customer satisfaction is always our primary concern, so be sure to give us a call today!

"In addition to replacing our sliding glass door with french doors we had them do siding repair, widow casing install and replacement, exterior trim repair and window replacement. All was done within a week and at the cost they provided. They even allowed for an exception due to some "work at home" needs. Great communication and fantastic workmanship."

Tim D on August 2023

At PAL Properties, LLC, we're excited to earn your business. Locally owned and operated, we are known in the area for our prompt service and attention to detail. We specialize in residential home renovation and design. Customer satisfaction is always our primary concern, so be sure to give us a call today!

"In addition to replacing our sliding glass door with french doors we had them do siding repair, widow casing install and replacement, exterior trim repair and window replacement. All was done within a week and at the cost they provided. They even allowed for an exception due to some "work at home" needs. Great communication and fantastic workmanship."

Tim D on August 2023


High Level Builders, LLC

New on AngiNew on Angi
Approved Pro

High Level Builders, LLC

New on AngiNew on Angi
Approved Pro
14 local quotes requested
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.


Avatar for Rosell Home, LLC

Rosell Home, LLC

4.90(
26
)
Approved Pro

Rosell Home, LLC

4.90(
26
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

Welcome to Rosell Home, LLC, where we bring over 20 years of experience to deliver the highest standard of craftsmanship and customer service in new home builds, residential remodels, and home additions. Our expertise extends to architectural and engineering services, ensuring your project meets both aesthetic and structural requirements. As part of our comprehensive offerings, we handle all permitting needs with the city, streamlining the process for you. In collaboration with our sister company, Washington Cabinet Co., we proudly manufacture modern and traditional cabinets tailored to your kitchen, bathroom, or closet needs. Our cabinet design center is conveniently located in downtown Redmond, WA. Come in, meet with our designer, and design your dream cabinetry with Washington Cabinet Co.As a locally owned business, we are deeply committed to our community and dedicated to making the remodeling process as effortless and rewarding as possible for our clients. Give us a call today!

"In addition to my other 5 star ratings I would like to add a five star appreciation for the entire teams respect for the home owners comfort and wishes as well as pride in their work."

Bev G on November 2023

Welcome to Rosell Home, LLC, where we bring over 20 years of experience to deliver the highest standard of craftsmanship and customer service in new home builds, residential remodels, and home additions. Our expertise extends to architectural and engineering services, ensuring your project meets both aesthetic and structural requirements. As part of our comprehensive offerings, we handle all permitting needs with the city, streamlining the process for you. In collaboration with our sister company, Washington Cabinet Co., we proudly manufacture modern and traditional cabinets tailored to your kitchen, bathroom, or closet needs. Our cabinet design center is conveniently located in downtown Redmond, WA. Come in, meet with our designer, and design your dream cabinetry with Washington Cabinet Co.As a locally owned business, we are deeply committed to our community and dedicated to making the remodeling process as effortless and rewarding as possible for our clients. Give us a call today!

"In addition to my other 5 star ratings I would like to add a five star appreciation for the entire teams respect for the home owners comfort and wishes as well as pride in their work."

Bev G on November 2023


LWC, Inc.

4.69(
37
)
Approved Pro

LWC, Inc.

4.69(
37
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
28 years of experience

DBA: Lake Washington Construction, Is a premium general contractor than specializes in remodels and additions but also has the capability and resources to build a custom home or garage. We also enjoy small jobs like, siding, decks, doors and windows, weather damage and just about any home related project. We do most Jobs in house with our w2 employees. the only subcontractors we use are on the larger jobs where the city requires a specialty license.

"Denis was very responsive to communication regarding the job of repairing dry rot in structure supports. The job was done quickly, on schedule, and the area they repaired looks great even though they had to take off siding and remove an exterior door to get to the repair. I would definitely hire them again!"

Tanya R on January 2021

DBA: Lake Washington Construction, Is a premium general contractor than specializes in remodels and additions but also has the capability and resources to build a custom home or garage. We also enjoy small jobs like, siding, decks, doors and windows, weather damage and just about any home related project. We do most Jobs in house with our w2 employees. the only subcontractors we use are on the larger jobs where the city requires a specialty license.

"Denis was very responsive to communication regarding the job of repairing dry rot in structure supports. The job was done quickly, on schedule, and the area they repaired looks great even though they had to take off siding and remove an exterior door to get to the repair. I would definitely hire them again!"

Tanya R on January 2021


Avatar for Johnson Custom Builders

Johnson Custom Builders

4.95(
60
)
Approved Pro

Johnson Custom Builders

4.95(
60
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
49 local quotes requested

Current Super Service Award Winner for 2019 seven years running! Johnson Custom Builders is a Design Builder. Our approach is simple. It all starts with listening. We work closely with our clients to understand everything from their needs to their design preferences. Then we go to work helping them exceed their goals. www.johnsoncustombuilders.com Our process is completely transparent. Our estimates are designed to provide realistic expectations not best-case scenarios. For us, communication is key and we keep you completely informed every step of the way communicating in a way that helps you anticipate and act to effectively engineer the best possible solutions every step of the way. At Johnson Custom Builders our approach is never just about managing timelines and budgets its about delivering on promises and helping you realize dreams. One look at a Johnson Custom build and you'll immediately understand why so many discriminating customers recommend us to their friends looking for a higher level of customized home building. It's not just about the attention to detail or use of the highest-quality materials or even the custom-crafted details. It's about the personalization. Personalization that comes from a builder that not only knows how to listen but also how to anticipate, communicate and most of all deliver on a promise. A native of Kirkland, Washington, founder Ryan Johnson shares the same core values as the community he has always called home: Integrity, Honesty and Originality. He's been actively designing, building and remodeling homes in the area for over 25 years. And in that time, he has earned a stellar reputation for providing outstanding results crafted with uncompromising integrity and quality. Hes also earned a reputation for delivering on his promises. A+ rating on the Better Business Bureau (BBB) !

"Ryan and his crew did a great job building out Car Port. From the first time we talked to a completed project was about 6 or 7 weeks. He and his crew were very professional and, came on time, and exceeded my expectations with respect to the quality, time to finish, etc. Ryan also collaborated with another team of professionals that were contracted to place Solar Pannels onto the Car Port that was just completed. He made sure that all of their requirements and spec were addressed while building the Car Port. THANK YOU Ryan and Co!"

Feliks S on October 2025

Current Super Service Award Winner for 2019 seven years running! Johnson Custom Builders is a Design Builder. Our approach is simple. It all starts with listening. We work closely with our clients to understand everything from their needs to their design preferences. Then we go to work helping them exceed their goals. www.johnsoncustombuilders.com Our process is completely transparent. Our estimates are designed to provide realistic expectations not best-case scenarios. For us, communication is key and we keep you completely informed every step of the way communicating in a way that helps you anticipate and act to effectively engineer the best possible solutions every step of the way. At Johnson Custom Builders our approach is never just about managing timelines and budgets its about delivering on promises and helping you realize dreams. One look at a Johnson Custom build and you'll immediately understand why so many discriminating customers recommend us to their friends looking for a higher level of customized home building. It's not just about the attention to detail or use of the highest-quality materials or even the custom-crafted details. It's about the personalization. Personalization that comes from a builder that not only knows how to listen but also how to anticipate, communicate and most of all deliver on a promise. A native of Kirkland, Washington, founder Ryan Johnson shares the same core values as the community he has always called home: Integrity, Honesty and Originality. He's been actively designing, building and remodeling homes in the area for over 25 years. And in that time, he has earned a stellar reputation for providing outstanding results crafted with uncompromising integrity and quality. Hes also earned a reputation for delivering on his promises. A+ rating on the Better Business Bureau (BBB) !

"Ryan and his crew did a great job building out Car Port. From the first time we talked to a completed project was about 6 or 7 weeks. He and his crew were very professional and, came on time, and exceeded my expectations with respect to the quality, time to finish, etc. Ryan also collaborated with another team of professionals that were contracted to place Solar Pannels onto the Car Port that was just completed. He made sure that all of their requirements and spec were addressed while building the Car Port. THANK YOU Ryan and Co!"

Feliks S on October 2025



Avatar for Verum Construction Inc.

Verum Construction Inc.

5.00(
2
)

Verum Construction Inc.

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

The Verum Truth-in-Building Process Delivers a Great Client Experience and a Better Result: Is it time to extend your living space into the great outdoors? Maybe you're ready to renovate that deck, build an outdoor kitchen, create a home office, add a home gym, or finally get serious about that new addition. No matter what type of home improvement project we're working on, the goal is to increase your comfort and maximize the enjoyment of your time spent at home. And as Seattle Area's best communicating construction company, we know things like increased home value, efficiency, and curb appeal are exciting bonuses.

"Verum Construction is a top notch general contractor! They have a very straight forward and transparent proposal process. There are many decisions that need to made when doing a remodel and the renderings they include really simplifies the process. Their attention to detail and craftsmanship is evident and they even left the job site clean every day! Couldn’t be happier!"

Evan N on October 2024

The Verum Truth-in-Building Process Delivers a Great Client Experience and a Better Result: Is it time to extend your living space into the great outdoors? Maybe you're ready to renovate that deck, build an outdoor kitchen, create a home office, add a home gym, or finally get serious about that new addition. No matter what type of home improvement project we're working on, the goal is to increase your comfort and maximize the enjoyment of your time spent at home. And as Seattle Area's best communicating construction company, we know things like increased home value, efficiency, and curb appeal are exciting bonuses.

"Verum Construction is a top notch general contractor! They have a very straight forward and transparent proposal process. There are many decisions that need to made when doing a remodel and the renderings they include really simplifies the process. Their attention to detail and craftsmanship is evident and they even left the job site clean every day! Couldn’t be happier!"

Evan N on October 2024


Avatar for Awnings by Design NW

Awnings by Design NW

No reviews yet

Awnings by Design NW

No reviews yet
6 years of experience

We offer a full line of products in order to provide unique and innovative solutions for all of your exterior shading needs; Retractable Awnings - Louvered Patio Covers - Pergolas - Exterior Solar Shades & Screens. Awnings by Design NW is a family-owned and operated business, located in Kirkland, Washington. We are a small, local business and pride ourselves on excellent service and customer satisfaction. We build your project to your specifications right in our own shops. We design and engineer our products for beauty, function and durability. We specialize in commercial and residential shading solutions.

We offer a full line of products in order to provide unique and innovative solutions for all of your exterior shading needs; Retractable Awnings - Louvered Patio Covers - Pergolas - Exterior Solar Shades & Screens. Awnings by Design NW is a family-owned and operated business, located in Kirkland, Washington. We are a small, local business and pride ourselves on excellent service and customer satisfaction. We build your project to your specifications right in our own shops. We design and engineer our products for beauty, function and durability. We specialize in commercial and residential shading solutions.

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Sunrooms and Patios questions, answered by experts

An Arizona room may or may not count toward your home’s square footage, depending on local regulations and the specifics of the room, but generally does not get included in the total square footage. In many locations, a room needs to be built to the same quality as the rest of the home, have an integrated heating/cooling system, and be habitable year-round to count toward square footage. 

A lanai is a covered patio with open walls, while a Florida room has sides made of mesh screens or windows, with or without partial low walls. In addition, lanais often use concrete or other patio flooring, while Florida rooms may have more indoor-style flooring like tile or wood. Both allow you to enjoy the outdoors without being in the direct sun, but a lanai doesn’t offer any barrier against insects or debris.

Enclosing a patio to create a sunroom or three-season room is a great idea for many homeowners, as it creates a space filled with natural light and fresh air for relaxing and entertaining that you can use even in inclement weather. Plus, most homeowners see a great return on investment of around 70%, so much of the cost is recuperated over time.

The life span of your solarium will depend on the materials used and how much wear and tear the room experiences from the inside and from the outside due to weather. On average, you can expect your solarium to last anywhere from 10 years to 50 or more. In rare cases, such as with old estates, solariums can last over 100 years.

Sunrooms are highly customizable and are built in a variety of configurations. The size and type will largely determine the overall cost of the project. Some of the most common types of sunrooms include:

  • Three-season room: $10,000–$40,000

  • Four-season room: $25,000–$80,000

  • Glass solarium: $30,000–$75,000

  • Conservatory or garden room: $5,000–$80,000

  • Atrium: $10,000–$35,000

  • Prefabricated sunroom: $5,500–$30,000

The Mercer Island, WA homeowners’ guide to sunroom and patio services

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

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