5 Best Hvac Services In Seattle (2026)

Independently ranked by our review of ratings, reviews and reputation · Updated 2026 · How we chose

By Brad Smith, Home Services Expert

Published Jan 4, 2025 · Updated Jan 6, 2025

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1. Greenwood Heating and…
2. Brennan Heating & Air…
3. Evergreen Home Heating…
4. Olson Energy Service
5. Go Green Heating AC &…
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At a glance

#	Business	Rating	Reviews
1	Greenwood Heating and Home Services	4.8 ★	2.410	View ›
2	Brennan Heating & Air Conditioning	4.8 ★	1.960	View ›
3	Evergreen Home Heating and Energy	3.6 ★	858	View ›
4	Olson Energy Service	4.8 ★	330	View ›
5	Go Green Heating AC & Electric	3.2 ★	179	View ›

Greenwood Heating and Home Services

4.8/5 2.410 Google reviews

Greenwood Heating and Home Services is a reputable HVAC company based in the Pacific Northwest, known for its exceptional service in heating and cooling solutions. Specializing in furnace repairs, heat pump installations, and home heating systems, they have built a strong reputation among homeowners for reliability and professionalism. Their team is dedicated to ensuring customer satisfaction, making them a preferred choice for many in the region.

Professionalism: 5 ⭐⭐⭐⭐⭐
Quality of Work: 5 ⭐⭐⭐⭐⭐
Customer Service: 5 ⭐⭐⭐⭐⭐
Response Time: 5 ⭐⭐⭐⭐⭐
Value for Money: 4 ⭐⭐⭐⭐

Pros

Professional Technicians: The technicians, including David and Mike, demonstrate a high level of professionalism and expertise, addressing customer inquiries with patience.
Responsive Service: Customers have noted the quick response times and effective communication when scheduling appointments and addressing urgent issues.
Quality Workmanship: The installation and repair work are consistently praised for attention to detail and high-quality execution.
Customer-Centric Approach: Greenwood Heating prioritizes customer needs, providing thorough explanations and ensuring clients feel comfortable throughout the process.
Reliable Follow-Up: The company stands out for its commitment to following up and ensuring that all issues are resolved satisfactorily.

Cons

Limited Availability: Some customers may experience longer wait times during peak seasons due to high demand for their services.
Pricing Transparency: While generally competitive, a few customers expressed a desire for clearer upfront pricing information before service.
Parts Availability: In some cases, technicians needed to retrieve parts, which could delay repairs slightly, though the service was ultimately completed on the same day.
Potential for Overbooking: With their growing popularity, there may be times when scheduling appointments can be challenging.
Focus on Specific Services: While they excel in heating and cooling, customers looking for broader home service solutions may need to seek additional providers.

In summary, Greenwood Heating and Home Services stands out as a top-tier choice for homeowners seeking reliable HVAC solutions. Their commitment to quality, professionalism, and customer satisfaction is evident in the feedback from various clients. While there are a few minor areas for improvement, the overwhelming consensus is that they provide outstanding service that meets and exceeds expectations. We wholeheartedly recommend Greenwood Heating for all heating and cooling needs.

Address: 14027 Interurban Ave S, Seattle, WA 98168, United States
Phone: (206) 207-4734

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Brennan Heating & Air Conditioning

4.8/5 1.960 Google reviews

Brennan Heating & Air Conditioning is a well-established HVAC company known for its exceptional service in heating, cooling, and plumbing solutions. With a focus on customer satisfaction, they have built a loyal client base over the years. Their skilled technicians are dedicated to providing thorough maintenance, repairs, and installations, ensuring that homes remain comfortable year-round.

Professionalism: 5 ⭐⭐⭐⭐⭐
Quality of Work: 5 ⭐⭐⭐⭐⭐
Customer Service: 5 ⭐⭐⭐⭐⭐
Response Time: 4 ⭐⭐⭐⭐
Value for Money: 4 ⭐⭐⭐⭐

Pros

Expert Technicians: Technicians like Dakota and Steven are highly praised for their professionalism, knowledge, and friendly demeanor.
Thorough Maintenance: Customers appreciate the comprehensive maintenance services that ensure HVAC systems are running efficiently and effectively.
Clear Communication: Technicians take the time to explain their work and provide valuable recommendations, enhancing customer understanding and trust.
Long-Lasting Relationships: Many clients express satisfaction with Brennan’s services over the years, indicating a strong commitment to quality and reliability.
Versatile Services: In addition to HVAC, Brennan also offers plumbing services, which customers have found equally satisfactory.

Cons

Limited Availability: Some customers have noted that scheduling appointments can be challenging during peak seasons due to high demand.
Pricing Clarity: While the service quality is high, a few clients felt that upfront pricing details could be more transparent.
Parts Replacement: In instances where parts need to be replaced, customers may experience delays if the parts are not readily available.
Service Area Limitations: Some potential clients may find that Brennan’s service area does not cover their location.
Occasional Wait Times: A few reviews mentioned minor wait times for technicians to arrive, though this did not detract from the overall satisfaction.

In conclusion, Brennan Heating & Air Conditioning has proven to be a reliable choice for homeowners seeking top-notch HVAC and plumbing services. Their commitment to professionalism, thoroughness, and customer education sets them apart in the industry. Despite minor areas for improvement, the overwhelming feedback from clients reflects a strong sense of satisfaction and loyalty. We wholeheartedly recommend Brennan for all heating, cooling, and plumbing needs.

Address: 4601 S 134th Pl, Seattle, WA 98168, United States
Phone: (877) 273-6626

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Evergreen Home Heating and Energy

3.6/5 858 Google reviews

Evergreen Home Heating and Energy is a trusted HVAC service provider based in Seattle, specializing in heating and cooling solutions for residential properties. Known for their commitment to customer satisfaction, they offer a range of services, including installation, maintenance, and repair of HVAC systems. With a focus on energy efficiency and competitive pricing, they aim to deliver high-quality service to their clients.

Professionalism: 4 ⭐⭐⭐⭐
Quality of Work: 3 ⭐⭐⭐
Customer Service: 3 ⭐⭐⭐
Response Time: 5 ⭐⭐⭐⭐⭐
Value for Money: 3 ⭐⭐⭐

Pros

Professional Team: Many customers appreciate the courteous and professional demeanor of the technicians, ensuring a pleasant experience during service visits.
Quick Response Time: The company is praised for its ability to dispatch technicians rapidly, especially during emergencies, providing peace of mind to clients.
Comprehensive Services: Evergreen offers a variety of HVAC services, including annual maintenance programs that many clients find beneficial for long-term system care.
Competitive Pricing: Customers have noted that Evergreen’s prices are reasonable compared to other service providers in the area.
Knowledgeable Technicians: Reviews highlight the expertise of technicians like Kody, who offer helpful insights and thorough explanations during service calls.

Cons

Inconsistent Service Quality: Some customers reported dissatisfaction with the quality of service, particularly related to diagnostic issues and repairs that did not resolve their problems.
Communication Issues: A notable complaint involves poor follow-up communication from management after service visits, leaving customers feeling neglected.
High Charges for Minor Repairs: There are instances where clients felt they were charged excessively for minor repairs, leading to frustration and mistrust.
Failed Repairs: A few customers experienced recurring issues that were not adequately addressed during initial service visits, leading to additional costs and the need for other contractors.
Mixed Reviews on Maintenance Programs: While some clients are satisfied with the annual maintenance, others have expressed concerns over the effectiveness of the service in preventing issues.

In summary, Evergreen Home Heating and Energy showcases a mixed bag of customer experiences. While many clients praise their quick response times and professionalism, there are significant concerns regarding service consistency and communication. The company has the potential to deliver excellent service, but improvements in follow-up and repair accuracy are necessary to enhance overall customer satisfaction. We recommend considering Evergreen for your HVAC needs while being mindful of the mixed reviews.

Address: 727 S Kenyon St Suite B, Seattle, WA 98108, United States
Phone: (206) 565-1455

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Olson Energy Service

4.8/5 330 Google reviews

Olson Energy Service is a well-regarded HVAC company specializing in heating and cooling solutions, including the installation of heat pumps and furnace services. With a strong reputation for quality and efficiency, they have garnered positive feedback from clients for their professionalism and customer care. The company is committed to providing reliable energy solutions that enhance home comfort.

Professionalism: 5 ⭐⭐⭐⭐⭐
Quality of Work: 5 ⭐⭐⭐⭐⭐
Customer Service: 5 ⭐⭐⭐⭐⭐
Response Time: 4 ⭐⭐⭐⭐
Value for Money: 5 ⭐⭐⭐⭐⭐

Pros

Efficient Installation: Customers have praised the quick and efficient installation of systems, such as heat pumps, often completed within a few hours.
Knowledgeable Technicians: The service technicians are noted for their expertise and ability to explain system operations clearly, ensuring clients feel comfortable with their new equipment.
Polite and Professional Staff: Reviewers consistently highlight the courteous and professional demeanor of the crew, contributing to a positive customer experience.
Transparent Pricing: Clients appreciate that there are no surprises in pricing, with jobs completed as per the initial bid provided by the company.
Long-Term Trust: Many customers express satisfaction with Olson Energy Service, indicating a willingness to return for future HVAC needs based on their past experiences.

Cons

Limited Service Scope: While they excel in HVAC services, some customers may find that their offerings do not extend to other home energy needs.
Ownership Changes: A few clients have noted the transition in ownership, leading to concerns about consistency in service quality, although most reviews remain positive.
Availability Issues: During peak seasons, scheduling may be more challenging, as demand for HVAC services can increase significantly.
Occasional Follow-Up Needs: Some customers have mentioned that additional follow-up or reminders for maintenance could enhance the service experience.
No Major Complaints: While overall feedback is excellent, there are few reviews that provide constructive criticism beyond minor service scope limitations.

In summary, Olson Energy Service stands out as a reliable choice for homeowners seeking quality HVAC solutions. Their efficient service, knowledgeable technicians, and transparent pricing have earned them a loyal customer base. While there are minor areas for improvement, the overwhelming positive feedback reflects a strong commitment to customer satisfaction. We highly recommend Olson Energy Service for all heating and cooling needs, confident in their ability to provide excellent service.

Address: 4415 Leary Wy NW, Seattle, WA 98107, United States
Phone: (206) 782-5522

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Go Green Heating AC & Electric

3.2/5 179 Google reviews

Go Green Heating AC & Electric is an HVAC service provider that offers installation, maintenance, and repair services for heating and cooling systems. With a focus on energy-efficient solutions, they aim to provide customers with high-quality service and transparency throughout the process. Their team is dedicated to ensuring that homes remain comfortable year-round while promoting environmentally friendly practices.

Professionalism: 4 ⭐⭐⭐⭐
Quality of Work: 3 ⭐⭐⭐
Customer Service: 3 ⭐⭐⭐
Response Time: 2 ⭐⭐
Value for Money: 4 ⭐⭐⭐⭐

Pros

Professional Installation: Many customers have praised the professionalism and attention to detail displayed by the installation team, ensuring that projects are completed to a high standard.
Transparent Bidding Process: Clients appreciate the clear breakdown of costs in the bidding process, which helps them understand labor and material expenses upfront.
Knowledgeable Technicians: Reviewers have noted that the technicians are well-informed and take their time to ensure that installations and maintenance are done correctly.
Clean Work Environment: Customers have highlighted that the team leaves the work area spotless after completing their tasks, reflecting a commitment to cleanliness.
Positive Customer Experiences: Several reviews indicate a strong overall satisfaction with the service received, leading to recommendations for future customers.

Cons

Inconsistent Service Quality: There are significant concerns regarding the quality of workmanship, particularly from a customer who experienced issues with a mini-split system that was not properly installed.
Poor Communication: Some clients have reported difficulties in reaching the company for follow-up service or inquiries, leading to feelings of being ignored or ghosted.
High Additional Costs: One customer faced unexpected expenses due to inadequate labeling of wires and tubes, which added to the frustration regarding the initial service.
Delayed Response Times: Customers have mentioned longer wait times for service appointments, especially during peak seasons, which can be inconvenient.
Mixed Reviews: While many experiences are positive, the stark contrast in reviews suggests a lack of consistency in service delivery across different projects.

In summary, Go Green Heating AC & Electric presents a mixed bag of customer experiences. While many clients commend their professionalism and transparent pricing, others have faced significant issues with service quality and communication. The company has the potential to deliver excellent HVAC solutions, but improvements in consistency and follow-up service are essential to enhance overall customer satisfaction. We recommend exercising caution and thoroughly vetting their service based on individual experiences when considering Go Green for your HVAC needs.

Address: 3218 Eastlake Ave
Phone: +12066201600

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Finding the best HVAC services in Seattle can feel overwhelming, especially with so many options available. Your comfort shouldn’t be compromised, especially during those chilly winters or sweltering summers. Act now to ensure your home stays cozy and energy-efficient, preventing future headaches from unexpected breakdowns.

FAQ

What should I look for when choosing an HVAC service?

When selecting an HVAC service, consider factors like customer reviews, industry experience, certifications, range of services offered, and response times. These elements can help ensure you choose a reliable provider.

How often should I schedule HVAC maintenance?

It’s generally recommended to schedule maintenance at least once a year. Regular check-ups can help prevent breakdowns and ensure your system operates efficiently.

What are signs that my HVAC system needs repairs?

Common signs include unusual noises, inconsistent temperatures, increased energy bills, and strange smells. If you notice any of these issues, it may be time to call a professional for an inspection.

How long does an HVAC installation typically take?

The installation duration can vary based on the complexity of the system, but most installations take between one to three days. Your contractor can provide a more precise timeline based on your specific situation.

Are there financing options available for HVAC services?

Many HVAC companies offer financing plans or payment options to help manage costs. It’s best to inquire directly with the service provider to explore available options that fit your budget.

Conclusion

Choosing the best HVAC services in Seattle is essential for maintaining a comfortable and energy-efficient home. By focusing on customer reviews, industry experience, and service offerings, we can make informed decisions that lead to reliable support. Understanding the costs involved and recognizing the signs that indicate maintenance or repairs are crucial for long-term satisfaction. As we prioritize our comfort and well-being, investing in quality HVAC services becomes not just a necessity, but a smart choice for every homeowner.

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