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- Lifetime Warranty on Parts and Labor*
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Renton Harts Plumbers, Electricians, & HVAC Technicians
- Open 24/7
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4.8 / 5 From 8.2k Reviews

Renton HVAC Services
Furnace Repair in Renton, WA
Your Local Furnace Repair Specialists
When temperatures in Renton, WA, start to drop, having a reliable furnace is crucial to keeping your home warm and cozy. At Harts, we provide top-quality furnace repair services designed to ensure your heating system operates efficiently throughout the cold months. Our licensed HVAC technicians deliver fast, dependable, and affordable furnace repairs for homeowners in Renton.
We Repair All Types of Furnaces
Harts specializes in fixing a wide variety of heating systems, including:
- Gas Furnaces
- Electric Furnaces
- Propane Furnaces
- Oil Furnaces
Each type of furnace presents unique challenges, and our team is trained to handle them all with expertise.
Gas Furnace Repair
Gas furnaces are known for their energy efficiency and powerful heating capabilities, but issues like a malfunctioning pilot light or gas valve can disrupt performance. Our Renton-based technicians have the tools and expertise to diagnose and repair gas furnace problems, restoring safe and efficient operation.
Electric Furnace
Electric furnaces are reliable but can encounter issues like faulty heating elements, wiring problems, or thermostat failures. If your electric furnace isn’t providing enough heat or has stopped working, our HVAC experts will quickly identify and resolve the issue to restore warmth to your home.
Propane Furnace Repair in Renton
Propane furnaces offer environmentally friendly heating with high heat output, even in extremely cold conditions. These systems are ideal for areas where natural gas isn’t available. Harts can repair and maintain your propane furnace, ensuring optimal performance and efficiency.
Oil Furnace Replacement in Renton
Oil furnaces, while less common, are still found in some Renton homes. They require regular maintenance to prevent soot and carbon buildup. At Harts, we recommend upgrading older oil furnaces to modern, more efficient heating systems, but we’re also equipped to repair and maintain existing oil furnaces.
Why Choose Harts for Furnace Repair in Renton, WA?
- Fast, reliable service tailored to your needs
- Licensed and experienced HVAC technicians
- Affordable solutions to fit your budget
- Expertise in all furnace types and brands
When you need furnace repair in Renton, WA, trust Harts to deliver the professional service you deserve. Contact us today to schedule your furnace repair and keep your home warm this winter!

Renton's Furnace Experts
Signs Your Furnace Needs Repair
Is your furnace showing signs of trouble? Recognizing the early warning signals can help you avoid more extensive repairs and keep your home comfortable during Renton’s cold months. Here are some common indicators that your furnace might need professional attention:
1. Unusual Noises
Banging, rattling, or humming sounds coming from your furnace may indicate loose or worn parts that need replacement. Don’t ignore these noises—addressing them early can prevent further damage.
2. Inconsistent Heating
Are some rooms colder than others, or is your furnace struggling to maintain a steady temperature? These could be signs of underlying issues that require an inspection and repair.
3. Increased Energy Bills
A sudden increase in your energy bill might mean your furnace is working harder than necessary due to reduced efficiency. Regular maintenance and timely repairs can help lower your energy costs.
4. Frequent Cycling
If your furnace turns on and off frequently, it may be struggling to heat your home properly. This can be caused by thermostat issues, airflow problems, or mechanical malfunctions.
Schedule Furnace Repair in Renton, WA
If you’re experiencing any of these issues, it’s time to act. At Harts, we provide expert furnace repair services in Renton, WA, to diagnose and fix problems quickly and effectively. Don’t let a faulty furnace disrupt your comfort—call us today to schedule your repair appointment and restore your home’s warmth and efficiency.










Furnace Services in Renton
At Harts Plumbers, Electricians, & HVAC Technicians, our Tukwila/Renton location operates from a fully-stocked and centrally located warehouse on Industry Drive near Southcenter Mall, allowing our HVAC technicians to reach customers throughout Renton, Tukwila, and nearby communities efficiently. With quick access to major routes like I-5 and I-405, we’re strategically positioned to respond quickly to service calls. Whether it’s a scheduled maintenance visit or an urgent repair, our convenient location near the heart of Renton and Tukwila enables us to deliver fast, reliable service to homes and businesses across the area. We’re less than 15 minutes away from the Jimi Hendrix Memorial in Renton.
Oil Furnace Replacement in Renton
If you have an older oil furnace, you may be noticing rising fuel costs and more frequent repairs. Replacing it with a modern system offers a significant improvement in efficiency, cost savings, and environmental impact. Newer models, whether electric, gas, or heat pump systems, consume less energy and reduce greenhouse gas emissions. Plus, with available incentives for energy-efficient upgrades, switching from an oil furnace can save you money upfront and over time. At Harts, we provide seamless replacement options that prioritize energy savings, dependability, and year-round comfort.
Local Gas Furnace Services
Keep your home warm and energy-efficient with professional gas furnace services from Harts. As Renton’s trusted HVAC experts, we specialize in gas furnace repair, maintenance, and installation to ensure your system operates at peak performance all year long. Whether your furnace needs a quick fix, a thorough tune-up, or a complete replacement, Harts has you covered.
1. Gas Furnace Repair in Renton
Is your gas furnace struggling to keep your home warm? Common issues like a broken pilot light, malfunctioning thermostat, or gas valve problems can leave you in the cold. Our licensed technicians will quickly diagnose the issue and provide expert repairs to restore your system’s functionality and safety.
2. Gas Furnace Maintenance
Regular maintenance is essential for keeping your gas furnace running efficiently and preventing costly breakdowns. During our tune-up services, we’ll inspect, clean, and test your system to ensure optimal performance. Benefits of routine maintenance include:
- Lower energy bills
- Improved furnace lifespan
- Enhanced heating efficiency
- Increased safety
3. Gas Furnace Installation and Replacement
If your current gas furnace is outdated or beyond repair, our team can help you select and install a new, energy-efficient model that fits your home’s needs. We specialize in seamless installations, ensuring your new system operates reliably from day one.
Electric Furnaces Services
When it comes to reliable heating in Renton, electric furnaces are a popular choice for their efficiency, safety, and cost-effectiveness. At Harts, we provide a full range of electric furnace services, from installation and repair to maintenance and replacement. Whether you’re looking to upgrade to a high-efficiency electric furnace or need fast repairs on your existing unit, our certified technicians have the expertise to keep your home comfortable and energy-efficient all winter long.
Our Electric Furnace Services Include:
Electric Furnace Installation: Our team specializes in seamless installations tailored to your home’s needs, ensuring your new electric furnace runs efficiently from day one. We offer expert guidance on choosing the best system for your home’s size and heating requirements.
Electric Furnace Repair: If your electric furnace is experiencing issues like uneven heating, strange noises, or poor airflow, our technicians can diagnose and fix the problem quickly. We prioritize prompt, reliable service to restore warmth to your home without delay.
Routine Maintenance: Regular maintenance keeps your electric furnace running efficiently and extends its lifespan. Our maintenance services include a comprehensive inspection, cleaning, and testing to help prevent breakdowns and ensure optimal performance.
Electric Furnace Replacement: If your furnace is outdated or requires frequent repairs, it may be time for a replacement. We help you choose an energy-efficient model that meets your needs and budget, providing an installation that minimizes downtime and maximizes comfort.
Maintenance
Choose Harts for Furnace Repair
At Harts, we understand that a furnace breakdown can be a major inconvenience. That’s why we prioritize fast response times, effective solutions, and quality service for every repair job. Here’s what sets us apart:
- Experienced Technicians: Our HVAC experts are trained to diagnose and fix all furnace brands and models, so you can trust we’ll get the job done right.
- Honest Pricing: We believe in transparent pricing, with no hidden fees or surprise costs. You’ll know exactly what to expect before we start any work.
- Reliable Repairs: From minor fixes to major repairs, we aim to restore your furnace to optimal performance and ensure a comfortable home.
Become a Member
Renton Resident Harts Care Plan
Become a Harts Care Plan (HCP) Member today, and our call center can help remind you when routine maintenance is due. HCP Members get a bi-annual Heating System Tune Up, as well as:
- Priority Service: Always first in line & a dedicated support line.
- No diagnostic or trip fees!
- One year warranty on all repairs.
- Member Only Savings: 10% off all service work up to $500.
- Annual Rewards: $100 Loyalty Voucher & Rebate Voucher.
- Annual Plumbing/Sewer Safety Check.
- Annual Electrical Safety Check.
- Bi-Annual HVAC System Tune Up.
What Our Clients Say
4.8 / 5 From 8.2k Reviews

About Harts
The Harts Difference
At Harts, we believe every customer deserves exceptional service and peace of mind when it comes to HVAC for your home. That’s why it’s our mission to provide professional, high-quality, and value-driven heating and cooling solutions you can trust at affordable rates. Our team of skilled HVAC technicians is dedicated to delivering precise, courteous service every time.
As a local heating and cooling company, we’re proud to offer a full range of residential HVAC repairs, installations, and maintenance solutions.
- “We Care More” is our customer service motto!
- Our technicians are certified & insured.
- We provide the highest quality professional workmanship.
- We offer competitive rates and pricing options.
Harts Plumbers, Electricians, & HVAC Technicians Renton
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Forever Covered.
Forever Comfortable.
The Harts Forever Warranty
At Harts Plumbers, Electricians, & HVAC Technicians, we stand behind the quality of our work with our Harts Forever Warranty, ensuring peace of mind forever.
Our warranty covers the following equipment and services:
- Furnaces
- Air Handlers
- Air Conditioners
- Heat Pumps
- Mini Splits
- Tank Water Heaters
- Tankless Water Heaters
- Whole Home Water Repipes
- Whole Home Sewer/Waste Repipes
- Main Water Service Replacement
- Full Sewer Replacement
- Electrical Panels
- Generators
- Whole Home Rewires
Furnace Heating Repair
At Harts, we go beyond quick fixes; we focus on long-term solutions that improve your furnace’s efficiency and reliability. Our comprehensive furnace heating repair services are designed to identify underlying issues that may impact performance and energy usage.
When you choose Harts for furnace repair, you’re opting for quality and experience. We start with a detailed inspection, checking components such as the heat exchanger, burner, and airflow systems. Many problems, like worn-out belts, clogged filters, and faulty ignition systems, can affect the entire system, leading to uneven heating and unnecessary energy costs. Addressing these issues promptly not only restores comfort but also prevents small problems from turning into costly repairs down the line.
Contact Us Now
Renton Harts Plumbers, Electricians, & HVAC Technicians
- Open 24/7
Call Us Today
4.8 / 5 From 8.2k Reviews

Frequently Asked Questions - Renton Furnace Services
How do I know if my furnace needs repair?
Look out for common warning signs, including:
- Unusual noises like banging, rattling, or humming
- Inconsistent heating or cold spots in your home
- Rising energy bills without increased usage
- Frequent cycling (turning on and off)
- A yellow or flickering pilot light instead of blue
How much does furnace repair in Renton cost?
The cost of furnace repair depends on the type and severity of the issue. On average, minor repairs are less expensive, while major repairs or parts replacement may cost more. At Harts, we provide transparent pricing and upfront estimates so you know what to expect.
How long does a furnace repair take?
Most furnace repairs can be completed within 1–2 hours. However, the timeframe may vary depending on the complexity of the problem and the availability of replacement parts.
Can I repair my furnace myself?
Furnace repair should always be handled by a licensed HVAC technician. Attempting DIY repairs can be dangerous, especially for gas furnaces, and may void your warranty or lead to more expensive repairs down the line.
How often should I schedule furnace maintenance?
It’s recommended to schedule furnace maintenance once a year, ideally before the heating season begins. Regular maintenance helps prevent breakdowns, improves energy efficiency, and extends the lifespan of your furnace.
What types of furnaces do you repair?
We repair all types, including, gas, electric, propane, and heat pump. The only type of furnace that we do not work on is oil furnaces, but we do replace them.
Can I Install a Smart Thermostat with My Gas Furnace?
Absolutely! Smart thermostats are compatible with most gas furnaces and can help increase efficiency by allowing more control over heating and cooling schedules and manage the air temperature settings, potentially saving even more on energy costs.
What Are Common Problems with Gas Furnaces?
Common problems with gas furnaces include issues with the pilot light or ignition system, which can prevent the furnace from producing heat. Dirty air filters are another frequent issue, as they restrict airflow and force the furnace to work harder, reducing its efficiency. Thermostat malfunctions can also cause problems, such as preventing the furnace from reaching the desired temperature. Additionally, frequent cycling, where the furnace turns on and off repeatedly, may result from improper airflow, clogged filters, or thermostat issues. Unusual noises, such as banging, rattling, or squealing, often indicate loose components or mechanical failures. A cracked heat exchanger is a more serious issue that requires immediate attention due to the risk of carbon monoxide leaks. If you encounter any of these problems, contacting Harts for expert gas furnace repair in Renton, WA, ensures fast, reliable solutions to restore your home’s warmth and safety.
Can I Replace My Electric Furnace with a Gas Furnace?
Yes, many Renton homeowners convert from electric. The conversion process requires running a gas line if one isn’t already installed and possibly upgrading ductwork or venting, so it’s best done by skilled technicians, like us.
Can I Replace My Oil Furnace with a Gas Furnace?
Yes! There are many benefits of replacing your oil furnace. Schedule an appointment for an HVAC technician to visit your home and go over possible replacement options.
Can a Gas Heating Replacement Improve my Indoor Air Quality?
Yes, high-quality air filters, such as HEPA or electrostatic filters, improve air quality by trapping more particles, especially important for homes with allergy-prone residents.
Are There Rebates or Incentives for Installing a High-Efficiency Gas Furnace System in Renton?
Yes, often times the utility company or government programs offer rebates and incentives for high-efficiency HVAC replacement installs. At Harts, we have an in-house installation team that focuses on saving you time and money by getting permits and rebates completed on your behalf.
Renton
Home Services
Plumbing
Our expert plumbing service offers reliable repairs, installations, and maintenance for homes and businesses. Trust us for efficient, professional solutions to all your plumbing needs.
Sewer & Drain
Our sewer technicians ensure your system flows smoothly, preventing backups and damage. Trust our expertise for fast, reliable, and effective sewer and drain solutions.
Electrical
Our residential electrical technicians specialize in home wiring, panel upgrades, and efficient lighting. Trusted professionals, ensuring safety and quality with every project.
HVAC
Our HVAC Technicians offer expert solutions for heating, ventilation, and air conditioning issues, ensuring efficient, prompt service to keep your environment comfortable.
Satisfaction Guaranteed
Schedule Your Furnace Repair
Whether your system is older or you have a modern, high-efficiency furnace, Harts provides tailored repair solutions that fit your needs and budget. For trusted furnace heating repair in Renton, rely on the team at Harts to keep your home comfortable and energy-efficient.