Business Details
21 Years
experience
Emergency
services
Expert HVAC Services in Chelmsford
Established in 2005 by Lee Nichols, we specialise in gas and oil heating systems designed to be energy-efficient, reliable, and cost-effective. Our team of dedicated engineers installs over 250 boilers annually across Essex, covering gas, oil, and LPG systems. Accredited by leading brands such as Worcester Bosch, Viessmann, and Vaillant, we prioritise technical expertise and customer satisfaction. Our engineers specialise in specific areas, ensuring precision in installations, repairs, and maintenance. We operate from our Chelmsford office, offering impartial advice and maintaining a showroom for boiler selections.Our commitment to professionalism is reflected in our Gas Safe and Oftec registrations, alongside a 10/10 customer satisfaction score on Checkatrade. We focus on minimising disruption during installations, using dust sheets and meticulous workmanship to maintain cleanliness. With flexible financing options and a reputation built on trust, we serve properties within a 20-mile radius of Chelmsford. Our long-standing growth and customer loyalty underscore our dedication to quality and reliability.
Services
Boiler Installation
Underfloor Heating
Air Conditioning
Gas Certificates
Emergency Repairs
Servicing Plans
Solar Thermal
Power Flushing
Plumbing
LPG Systems
Details
- Year established: 2005
Highlights and features
- 20 years of experience in domestic and commercial heating systems
- Accredited installers for leading boiler brands including Worcester Bosch
- Dedicated engineers specialising in boiler installations and repairs
- Flexible financing options with 0% APR available
- Consistently rated 10/10 for customer satisfaction on Checkatrade
Associations and certifications
- Gas Safe Register
- Oftec
- Worcester Bosch
- Viessmann
- Vaillant
- Glow-worm
- ATAG
What people say
Friendly & polite engineers
Minimal disruption during work
Efficient and tidy service
No jargon or upselling
Perfect gentlemen
Services
Boiler Installation
We specialise in replacing old boilers with energy-efficient gas, oil, or LPG models. Our engineers install around 250 boilers annually, ensuring minimal disruption and long-term reliability. Customers benefit from tailored solutions and financing options.
Underfloor Heating
Our underfloor heating solutions use dust-free, zero-build-up technology for residential and commercial properties. This energy-efficient system provides even heat distribution while maintaining aesthetic floor finishes.
Gas Certificates
We provide Gas Safety Certificates for landlords and property managers. Our Gas Safe registered engineers conduct thorough inspections to ensure compliance with UK regulations and tenant safety standards.
Emergency Repairs
Dedicated repair engineers address heating system failures promptly. We prioritise urgent cases to restore warmth and hot water quickly, operating within our 20-mile service radius.
Servicing Plans
Our care plans cover annual boiler servicing and priority repairs. These packages extend system longevity and efficiency while offering peace of mind through scheduled maintenance.
People
Lee Nichols
Founder & Owner
Lee founded Assured Heating Essex in 2005 and oversees daily operations. With 20 years in the heating sector, he combines technical expertise with organisational skills to maintain high service standards.
Questions
What areas do you cover?
We serve properties within a 20-mile radius of Chelmsford, including Rettendon and surrounding areas.
Can I finance a new boiler?
Yes, we offer 0% APR for 24 months, 5-year, and 10-year plans with Novuna Personal Finance.
Are your engineers certified?
Our team holds Gas Safe and Oftec registrations, with specialist accreditation from Worcester Bosch and other leading brands.
Do you offer emergency repairs?
Yes, we provide urgent boiler repair services during working hours with prompt response times.
What boiler brands do you install?
We work with Worcester Bosch, Viessmann, Vaillant, Glow-worm, and ATAG boiler systems.
How long does installation take?
Most boiler installations complete within one day, depending on system complexity and property requirements.
Reviews (2)
David Waterman
Mar 03, 2018
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So glad that the team installed a full central heating system for me last summer, it has been excellent now really put to the test. They ripped out the 80s warm air system and installed a boiler and all new rads. It was a big job but I couldn't fault them on price and professionalism as well as all being thoroughly decent chaps. If you are unsure who to use in Chelmsford I recommend you give them a call.
Natalie Ott
Jan 17, 2018
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Woke up Sunday morning to an awful smell around the house. My partner followed the smell which lead him to our boiler. Due to having very young Children in the house, one of which was poorly, we were fearful that the burning smell was hazardous so we turned the boiler off and cut the oil to the boiler. We called Assured Heatings office to see if there was an out of hours emergency number and someone answered the phone.
It happened to be Lee, who is the Director, who was sorting his new showroom. Within an hour he turned up at our door and spent the next 3 hours out of his Sunday working to fix the issue. He informed us that the smell was back fumes caused by a blocked flue, he completely striped the boiler down, cleaned it thoroughly and gave it a service at the same time. The boiler now looks and works like new. Apparently, and I quote, the boiler had a stroke in the morning and open heart surgery in the afternoon.
We were so grateful to the amazing customer service that we received and the fact that we weren't without a boiler on a freezing Sunday in January. We will definitely be using Assured Heating for the future and recommend them.
It happened to be Lee, who is the Director, who was sorting his new showroom. Within an hour he turned up at our door and spent the next 3 hours out of his Sunday working to fix the issue. He informed us that the smell was back fumes caused by a blocked flue, he completely striped the boiler down, cleaned it thoroughly and gave it a service at the same time. The boiler now looks and works like new. Apparently, and I quote, the boiler had a stroke in the morning and open heart surgery in the afternoon.
We were so grateful to the amazing customer service that we received and the fact that we weren't without a boiler on a freezing Sunday in January. We will definitely be using Assured Heating for the future and recommend them.
