Boiler repairs, servicing and installations across Dorset
From a boiler that won't fire to a full replacement, our vetted Gas Safe engineers cover it, repairs, annual servicing, gas safety certificates and new installations across Dorset, Poole and Christchurch.
A cold home and no hot water can't wait, so we aim for same-day or next-day appointments, with 24/7 emergency cover for breakdowns, leaks and loss of pressure.
Every engineer is Gas Safe registered and vetted, so your repair or installation is carried out safely and to standard, and backed by our repair guarantee.
Why Dorset chooses Go Assist
- ✓Gas Safe registered engineers.
- ✓24/7 emergency call-outs.
- ✓90-day or 365-day guarantee when you start a premium home membership.
- ✓Vetted local team who know the area.
Common boiler faults we repair in Dorset
Same-day and emergency repairs by Gas Safe registered engineers.
No heating or hot water
A boiler that won’t fire can be a faulty diverter valve, thermostat, PCB or pump. We diagnose the cause and get heat and hot water back.
Learn more →Losing pressure
A boiler that keeps dropping pressure often has a leak, faulty pressure-relief valve or a failed expansion vessel. We trace and fix the cause.
Learn more →Leaking or dripping
Water around the boiler can be a failed seal, valve or corroded pipework. We find the leak and repair it safely.
Learn more →Ignition or pilot fault
A boiler that won’t ignite or keeps going out can be a faulty ignition lead, gas valve or flame sensor. We repair it safely.
Learn more →Banging or kettling
Banging, gurgling or kettling usually points to limescale or trapped air in the system. We flush and repair for quiet, efficient running.
Learn more →Fault code & lockout
Most boilers show a fault code and lock out when something’s wrong. We read the code and carry out the repair.
Learn more →Boiler broken down? We'll sort it.
Call for same-day or emergency help in Dorset, or request a free quote online.
Boiler & heating installations
Upgrades and new installs, supplied and fitted by Gas Safe engineers.
New boiler installation
Combi, system or conventional boiler supplied and fitted, sized to your home and fully certified.
Learn more →Boiler replacement
Swap an old or inefficient boiler for a modern, more economical model.
Learn more →Radiators & valves
New radiators, towel rails and thermostatic valves fitted and balanced.
Learn more →Smart heating controls
Wireless thermostats and smart heating controls installed and set up.
Learn more →Hot water cylinders
Unvented and vented hot water cylinder supply, fit and repair.
Learn more →System upgrades
Magnetic filters, power flushing and pipework upgrades to protect your system.
Learn more →Servicing & recurring maintenance
Keep your heating safe, efficient and compliant year-round.
Annual boiler service
A yearly service keeps your boiler efficient, safe and warranty-valid.
Learn more →Gas safety certificate (CP12)
Landlord gas safety records and checks by Gas Safe registered engineers.
Learn more →Power flushing
Clears sludge and debris from the system to restore heating performance.
Learn more →Carbon monoxide checks
Flue and CO checks for safe, compliant operation.
Learn more →Landlord cover
Recurring gas safety and maintenance for rental properties.
Learn more →Service plans
Planned annual maintenance so nothing gets missed.
Learn more →Find your local boiler & heating page
Betty and our Gas Safe engineers cover boilers and heating right across Dorset. Pick your town for local coverage, or call now.
Boiler FAQs
Clear pricing and repair terms
Boiler work is quoted before it goes ahead, so you always know the cost before we start. Go Assist's current terms provide a 90-day same-fault repair guarantee, extended to a 365-day guarantee when you take out a premium home membership, subject to the stated exclusions. All gas work is carried out by Gas Safe registered engineers.
Before booking
- ✓Have your boiler make and model ready if possible.
- ✓Describe the symptom or any fault code shown.
- ✓For a new boiler, tell us your property type and current setup.
- ✓A Gas Safe engineer confirms the appointment and terms.
Book a boiler engineer
Tell us what you need, a repair, a service, a gas safety certificate or a new boiler quote, and your postcode. We'll check availability before confirming.
01202 150 787Mon–Thurs 8.30am–6pm · Fri 9am–4pm · 24/7 emergencies
Quick quote request
Thanks, we'll be in touch
Your enquiry has been received. Go Assist will call you back to confirm availability. Prefer to talk now? Call 01202 150 787.