A-rated boiler installs typically completed in one day, fully system-flushed, manufacturer-registered for a 10–12 year warranty, and backed by 30+ years of on-the-tools experience — so your heating runs cleaner, quieter and cheaper from day one.
Gas-Safe registered · 30+ years on the tools · Worcester, Vaillant & Ideal accredited
A boiler installation is the design, supply and commissioning of a new gas-fired combi, system or heat-only boiler — usually paired with a power-flush, a magnetic system filter, a smart thermostat and modern thermostatic radiator valves. An annual service is a Gas-Safe strip-down inspection that keeps the unit running safely, efficiently and within its manufacturer warranty.
Homeowners with a boiler over 10 years old, landlords protecting tenants and their rental yield, families whose heating bills have crept above £1,800/year, and anyone whose existing boiler is noisy, slow to heat or repeatedly losing pressure.
Replace when your boiler is over 12 years old, when repair quotes exceed £400, when parts are obsolete, when the unit is no longer A-rated, or when you're remodelling and adding bathrooms or radiators. Service every 12 months — without exception — to keep the warranty live.
A boiler is the single most expensive appliance in your home and the only one that burns gas under your roof. Specification mistakes, undersized pipework, poor flue routing or skipped flushes don't just waste money — they void warranties, fail Building Regulations and, in worst cases, put carbon monoxide into living spaces. A qualified Gas-Safe install is the difference between 15 years of quiet warmth and a £4,000 mistake.
Boilers rarely fail dramatically. They degrade — silently, expensively — for months before the breakdown. Here is what postponing an install or service actually costs:
A 15-year-old non-condensing boiler runs at roughly 70% efficiency. A new A-rated condensing unit hits 94%. On an average North East household that's £250–£400 in needlessly burned gas every year you delay.
Worcester, Vaillant, Ideal and Baxi all require an annual service logged by a Gas-Safe engineer. Skip one year and a £600 PCB fault becomes a £600 bill instead of a free repair.
Black magnetite sludge accumulates in radiators and the boiler's heat exchanger. Left alone it blocks pumps, kills new boilers in months and causes pin-hole leaks in central heating pipework hidden under floors.
Cracked heat exchangers, blocked flues and poor combustion can leak CO into living rooms. CO is colourless, odourless and kills around 30 people a year in the UK — a £90 service detects it before it ever reaches your family.
An installation by a non-registered fitter is not notified to Building Control. That makes your home difficult to sell, hard to insure and exposes you personally to enforcement notices.
Old systems were oversized. Dropping in an identically rated boiler wastes gas and short-cycles the unit. We always run a heat-loss calculation before quoting.
Fitting a new boiler onto a dirty system is the single biggest cause of new-boiler failure. We flush every install — non-negotiable.
These almost always exclude system filters, scale reducers, flue extensions, decommissioning, gas pipe upgrades and Building Control notification. The 'cheap' quote becomes the most expensive.
We visit, measure radiator outputs, check gas pipe sizing, inspect flue routes and run a room-by-room heat-loss calculation. No salesmen — the engineer who will fit it quotes it.
You receive an itemised, written, fixed-price quote within 48 hours. It lists the boiler, controls, filter, flush, warranty term, removal and Building Control notification.
We arrive at 08:00, dust-sheet the route, isolate, drain, decommission the old boiler, upgrade pipework, fit the new unit, flush the system and pressure-test.
Flue gas analysis, combustion ratio, gas tightness test, system pressure, and a full demonstration of your new controls. CO alarm fitted as standard.
Manufacturer warranty registered in your name, Building Control notified, Gas-Safe certificate issued, and a 12-month service reminder added to our diary — so you never accidentally void it.
Modern A-rated condensing boilers + modulating controls + balanced radiators typically cut gas bills by 20–30%.
Worcester Greenstar and Vaillant ecoTEC units come with up to 12-year parts & labour warranties when installed by accredited engineers — that's us.
Properly sized boilers run longer, gentler cycles. No more bangs, gurgles, or radiators that stay cold at the top.
Every install includes a smart thermostat (Nest, Hive or Worcester Wave) so you control heat from your phone and cut standby losses.
Flue gas analysis, CO alarm, gas-tightness testing and Building Control notification — your install is legally compliant and demonstrably safe.
Buyers and surveyors specifically ask for a recent boiler with a transferable warranty and a Gas-Safe paper trail. We give you both.
Boiler work is not a commodity. The right unit for a 2-bedroom Darlington terrace is the wrong unit for a 5-bedroom Stockton detached. Here is the engineering detail behind a Greencore install:
Combi boilers heat water on demand — ideal for 1–2 bathroom homes with mains pressure above 1.5 bar. System boilers (with an unvented cylinder) suit 3+ bathroom homes and households drawing two showers simultaneously. Heat-only (regular) boilers keep the existing tank and feed and are usually fitted in older properties where pipework can't be reasonably reconfigured. We size all three from a measured heat-loss survey, not a guess from photographs.
Worcester Bosch Greenstar 4000/8000 (best-in-class reliability, 10-yr warranty), Vaillant ecoTEC plus (German engineering, ultra-quiet modulation, 10-yr warranty), Ideal Logic Max (best value combi for smaller homes, 10-yr warranty) and Baxi 800 (excellent for landlords). We are accredited installers for each — meaning longer warranties and direct factory support.
On any system over 5 years old we power-flush — a high-flow, low-pressure circulation that lifts magnetite and limescale out of radiators and pipework. On newer systems a chemical flush with MC1+ inhibitor is sufficient. Every install also receives a Magnaclean Professional3 filter and an annual inhibitor top-up reminder.
Strip the case, inspect combustion chamber, clean burner, check seals and gaskets, test gas pressure and rate, perform flue gas analysis (CO/CO₂ ratio), test all safety interlocks, verify expansion vessel charge, check magnetic filter, top up inhibitor, log everything on a benchmark certificate. 60–90 minutes on site.
A Landlord Gas Safety Record (CP12) covers every gas appliance, not just the boiler, and is a legal requirement renewed annually. A homeowner service is for warranty protection and efficiency. We can combine both in one visit.
If you're moving away from gas, the BUS grant gives £7,500 toward an air source heat pump. Our renewables team can model the running-cost difference honestly before you commit.
Genuine project photography from across the North East — no stock imagery, no embellishment.
Free home survey. Written quote within 48 hours. No high-pressure sales. Gas-Safe registered (214402), fully insured (£5m public liability), and recommended by hundreds of North East households.
Gas-Safe registered (214402) · Fully insured (£5m public liability) · 12-month workmanship guarantee
