Answers to Common Questions About Domestic Gas & Heating Services

Whether you need a boiler repair, an annual boiler service, a Gas Safety Certificate, or advice about your central heating system, we’re here to help. Below you’ll find answers to some of the questions we are most frequently asked by homeowners and landlords across Heathrow and the surrounding areas.

If you can’t find the answer you’re looking for, please don’t hesitate to contact our friendly team.

Boiler Repairs

How do I know if my boiler needs repairing?
Common signs include no heating or hot water, unusual noises, leaking water, low pressure, fault codes or radiators that aren't heating up properly. If you notice any of these issues, it's best to have your boiler inspected by a qualified Gas Safe registered engineer as soon as possible.
Can most boilers be repaired?
In many cases, yes. If replacement parts are available and the repair is economical, we'll always recommend repairing your existing boiler before suggesting a replacement.
How quickly can you attend a boiler breakdown?
We always aim to respond as quickly as possible to boiler breakdowns across Heathrow and the surrounding areas, particularly when customers are left without heating or hot water.

Boiler Servicing

How often should my boiler be serviced?
We recommend having your boiler serviced every 12 months. Annual servicing helps keep your boiler operating safely and efficiently while reducing the risk of unexpected breakdowns and helping maintain many manufacturers' warranties.
What happens during a boiler service?
A typical boiler service includes: Visual safety inspection, Flue inspection, Gas pressure checks, Cleaning internal components (where required), Testing safety devices, Checking for leaks, Performance testing, Issuing a service record. A thorough service helps identify potential issues before they become expensive repairs.
Does a boiler service save money?
Yes. A well-maintained boiler generally runs more efficiently, helping reduce energy consumption while also extending the lifespan of your heating system.

Gas Safety

Are your engineers Gas Safe registered?
Yes. Every gas appliance should only be worked on by a qualified Gas Safe registered engineer. Our engineers are fully qualified to carry out domestic gas work safely and professionally.
What is a Gas Safety Certificate?
A Gas Safety Certificate (CP12) is an inspection carried out by a Gas Safe registered engineer to ensure gas appliances and pipework are safe to use. This is a legal requirement for landlords and provides reassurance that gas appliances meet current safety standards.
Is a boiler service the same as a Gas Safety Certificate?
No. A boiler service focuses on maintaining the performance and efficiency of your boiler, while a Gas Safety Certificate confirms that gas appliances are safe to use. Although the checks overlap in some areas, they are different services with different purposes.

Central Heating

Why are my radiators cold?
There are several possible causes including: Air trapped in the system, Sludge build-up, Faulty pump, Low boiler pressure, Thermostat issues, Blocked pipework. Our engineers can quickly diagnose the problem and recommend the most appropriate solution.
What is Power Flushing?
Power flushing uses specialist equipment to remove sludge, rust and debris from your central heating system. Benefits include: Improved heating performance, Faster warming radiators, Lower energy bills, Reduced boiler strain, Longer heating system lifespan.
How do I know if my heating system needs a power flush?
Signs include: Cold spots on radiators, Dirty heating water, Noisy boiler, Slow heating, Frequent breakdowns, Repeated radiator bleeding

Underfloor Heating

Do you install underfloor heating?
Yes. We install, repair and maintain domestic underfloor heating systems, helping homeowners enjoy comfortable, energy-efficient heating throughout their property.
Is underfloor heating more efficient than radiators?
Underfloor heating generally operates at lower water temperatures than traditional radiators while providing even heat distribution throughout a room, making it an efficient heating option for many homes.

Gas Appliances

Can you install gas cookers and hobs?
Yes. Our qualified Gas Safe engineers safely install and connect domestic gas cookers and hobs in accordance with current gas safety regulations.
Do you service gas fires?
Yes. We service, repair and maintain many types of domestic gas fires to help ensure they operate safely and efficiently.
Do you still work on back boiler units?
Yes. Although back boilers are becoming less common, we still carry out servicing, repairs and provide advice on replacement options where appropriate.

Getting in Touch

How can I request a quotation?

Simply contact our team by phone or complete our online enquiry form. We’ll discuss your requirements and provide honest advice along with a free, no-obligation quotation where appropriate.

Contact Us

Why choose LS Gas & Heating Ltd?

Homeowners choose LS Gas & Heating Ltd because we offer:

  • Fully Gas Safe Registered Engineers
  • Honest & Reliable Advice
  • Fast Local Response
  • Competitive Pricing
  • High-Quality Workmanship
  • Excellent Customer Service
  • Domestic Heating Specialists
  • Trusted Local Company

Still Have a Question?

If you can’t find the answer you’re looking for, our friendly team is always happy to help. Whether you need advice about a boiler repair, annual servicing, central heating, gas safety certificates or any other domestic heating service, we’re just a phone call or message away.

Contact Our Team Today