Annual ServicingWokingham & RG40
Boiler service · Unvented cylinder service · Landlord CP12 · Gas fire service — all by a Gas Safe & G3 qualified engineer
Thermotec provides all annual Gas Safe servicing across Wokingham and RG40 — fixed prices, exact arrival times and digital records issued on the day. As a Vaillant Advance Partner and Viessmann Accredited Installer, every service meets manufacturer specification to protect your warranty. Based in Arborfield, usually less than 15 minutes from your door.
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Every service is carried out by Stuart Mundy directly — Gas Safe 599015, G3 qualified, Vaillant Advance Partner and Viessmann Accredited. Fixed price confirmed before the visit.
- Gas tightness & CO check
- Combustion analysis & flue gas test
- Heat exchanger & burner clean
- Expansion vessel pressure check
- Digital Benchmark record issued
- Gas Safe inspection of all appliances
- Digital CP12 issued same day
- Tenant liaison — Stuart contacts tenant direct
- CP12 + service combo available (£150)
- Annual reminders sent automatically
- Pressure relief valve (PRV) test
- Expansion vessel pressure check
- Thermostat accuracy check
- Tundish and discharge pipework check
- G3 qualified inspection record
- Full boiler disassembly
- Replacement seals & Electrodes
- Heat exchanger inspection & clean
- Combustion chamber clean
- Reassembly to manufacturer spec
- Gas Safe visual inspection
- Combustion analysis & CO check
- Burner & injector clean
- Flue draught test & integrity check
- Written service record issued
- Manifold flow rate check & balance
- Pump and actuator inspection
- Zone control and thermostat check
- Pipework decontamination flush
- Inhibitor concentration check
- Boiler connection check (wet systems)
What’s included in a Thermotec boiler service
A full multi-point Gas Safe inspection — not a 20-minute tick-box exercise. Here is exactly what Stuart checks on every annual boiler service across Wokingham and RG40.
7 signs your boiler needs attention now
Don’t ignore these warning signs. Each one is a fault that is cheaper to fix during a service visit than as an emergency breakdown — and some carry a safety risk that should not wait.
The 25-Point New Home Heating Inspection
Moved into a new home in Wokingham? Don’t inherit a hidden heating headache. Most standard Home Buyer Surveys only carry out a visual check of the gas appliances — they don’t test internal system health, sludge levels, valve condition or smart control configuration.
Thermotec’s 25-Point New Home Inspection goes beyond a basic boiler service to give you a complete picture of the heating system in your new property from day one.
What’s included:
- ✓Full Gas Safe boiler service — deep-dive safety and efficiency check to validate manufacturer warranties
- ✓System water quality test — heating fluid analysed for sludge, magnetite and corrosion inhibitor levels
- ✓All radiator and valve audit — cold spots, seized TRVs and lockshield settings checked for even heat distribution
- ✓Expansion vessel inspection — pre-charge pressure tested and recharged if needed
- ✓Flue integrity and termination check
- ✓Hard water assessment — RG40 chalk aquifer context (330–380 mg/L) explained and protection recommended
- ✓Smart controls audit — Hive, Nest or tado° programming reviewed and optimised for your schedule
- ✓Full written digital health report issued after the visit
Covers Wokingham, Earley, Woodley, Finchampstead, Arborfield and the full RG40 and RG41 area. Stuart will advise on pricing when you call — it depends on the size of the system and number of radiators.
Landlord gas safety certificates — Wokingham & RG40
If you rent out a property in Wokingham, an annual Gas Safety Certificate (CP12) is a legal requirement under the Gas Safety (Installation and Use) Regulations 1998. Failure to comply is a criminal offence carrying an unlimited fine and up to 6 months imprisonment.
Thermotec provides CP12 certificates for landlords across Wokingham, Woodley, Earley, Finchampstead, Bracknell and the full RG40 and RG41 area. Digital certificate issued the same day. Tenant liaison available.
Boiler brands serviced across Wokingham
Accredited by the manufacturers — not a generalist who services everything. As Vaillant Advance Partner and Viessmann Accredited, Thermotec’s service records are accepted by all manufacturers for warranty compliance.
What Wokingham homeowners say
120+ five-star Google reviews from homeowners and landlords across Wokingham, Earley, Woodley and RG40.
“Unlike the ‘quick checks’ we’ve had from other companies, Thermotec performed a full 5-year manufacturer strip-down service. Stuart was meticulous — deep-cleaning internal components to ensure our Worcester Bosch warranty remains 100% valid. Truly the gold standard.”
“Professional, reliable and friendly. Stuart diagnosed a worn seal during the annual service and replaced it on the spot — saving us from what could have been a breakdown mid-winter. Boiler pressure had been dropping slowly and we’d been ignoring it. He found it immediately.”
“I use Thermotec for annual servicing across all four of my rental properties in Wokingham. Stuart always arrives exactly when he says, issues the CP12 certificates same day and keeps me legally compliant. Wouldn’t use anyone else.”
Annual servicing FAQs — Wokingham
The most common questions from homeowners and landlords across RG40.
How much does a boiler service cost in Wokingham?
How often does a boiler need servicing?
In Wokingham’s hard-water area (330–380 mg/L from the chalk aquifer), annual servicing is particularly important because limescale accumulates on heat exchangers faster than in softer-water regions. Stuart specifically checks for this on every service visit in RG40.
What is a 5-year manufacturer strip-down service?
What is a CP12 gas safety certificate and who needs one?
Thermotec provides CP12 from £75, issued digitally same day. Combined CP12 + boiler service available for £150. Tenant liaison available. Full CP12 information →
Can I book an exact arrival time?
For landlords with tenants, exact times remove the coordination problem entirely — Stuart can also contact the tenant directly to arrange access.
Do you service Viessmann and Vaillant boilers in Wokingham?
Both Viessmann and Vaillant require annual servicing by an accredited engineer to keep the extended warranty valid. Thermotec’s digital service records are accepted by both manufacturers for warranty compliance.
Annual servicing across Wokingham & Berkshire
Stuart covers all of Wokingham Borough and the surrounding Berkshire area from his Arborfield base — usually less than 15 minutes from your door.
Book your annual service —
exact arrival time, 24/7
From £96 fixed price · Digital record issued on the day · Warranty protection · Gas Safe Reg. 599015 · Based in Arborfield RG2