New boiler and central heating installation in Teesside
A full central heating installation in Teesside costs £3,500 to £6,500 in 2026: boiler, radiators, pipework, controls and commissioning. The number moves with the size of the house, the radiator count, and whether floors have to come up to run new pipework.
When a whole system is the right call
Some houses have no heating at all: a Middlesbrough terrace still on gas fires and immersion, a renovation stripped back to brick, or a property where 1970s microbore and rusting radiators have reached the end. Installing from scratch costs £3,500 to £6,500 for a typical two or three bedroom Teesside house with eight to ten radiators, rising for larger properties, extra bathrooms and awkward pipe routes. The advantage is that everything is sized as one system rather than bolted onto compromises.
What a full installation covers
- Heat loss calculation room by room, so radiators are sized for the room rather than guessed from the last one.
- Boiler choice matched to hot water demand: combi for one bathroom, system boiler with an unvented cylinder where several outlets run at once.
- New pipework in sensible sizes, with lifted floorboards and reinstatement stated on the quote.
- Radiators and valves: thermostatic on every radiator except the room with the thermostat, plus balancing at commissioning.
- Zoning and controls: separate heating and hot water control, and upstairs and downstairs zones where the layout justifies it.
- Commissioning and handover: flow temperature set for efficiency, inhibitor dosed, filter fitted, records and warranty issued.
The detail that decides comfort
Two installations at the same price can perform very differently. Flow temperature set at 75 degrees will heat a house but throws away condensing efficiency; set nearer 55 with radiators sized to suit, the same boiler costs noticeably less to run. Balancing matters just as much, and it is the step most often skipped: without it, the radiator nearest the boiler roasts while the back bedroom never warms up. Ask whether balancing and flow temperature setup are included, because on a good quote they are.
Renovations and extensions
If plaster is coming off anyway, that is the moment for pipework, since first fix before plastering is cheaper and neater than chasing walls later. Extensions usually need the existing boiler load reviewed rather than automatically replaced: adding two radiators to a system with headroom is a modest job, while adding a kitchen diner and a shower room to a tired 24kW combi is not.
See the cost guide for prices by house type, or the boiler replacement page if the pipework and radiators are staying.