— Blog
Replacing a boiler in Stourport-on-Severn is more than picking a brand — a fair estimate depends on several technical and property-specific factors. This guide explains what Gas Safe engineers look for during a home survey and how you can prepare to get an accurate, transparent quote from Pegasus Plumbing & Heating.
Boiler type and output: Combi, system or regular boilers serve different property types. A torridge of Victorian terraces, riverside apartments and newer estates in Stourport have different hot-water demands. The engineer will size the boiler to match your central heating and hot-water needs — not the advertised kW figure alone.
Property size and layout: Number of bedrooms, radiators and whether you have a hot-water cylinder or loft tank affects the specification. A three-bed semi with a cylinder will need a different solution to a two-bed riverside flat with a combi boiler.
Existing pipework and radiators: Old or corroded pipework, undersized pipes and cold radiators can mean extra labour — rerouting pipes, replacing radiator valves or fitting a larger feed. Engineers often recommend a powerflush or adding thermostatic radiator valves (TRVs) to get the most from a new boiler.
Flue location and type: The route a flue must take (through an external wall, up through a roof or via a rear chimneystack) changes installation complexity. A straightforward external-wall flue is faster; complex roof or chimney works take longer and need extra materials.
Boiler position and access: Lifting a boiler through narrow staircases, loft hatches or down into basements increases labour time. If the boiler sits in a kitchen with fitted units, works to protect or remove cupboards may be required.
Ventilation and condensate discharge: Modern condensing boilers need adequate condensate drainage and ventilation. If current drainage isn’t suitable, an engineer will need to install a safe discharge route, which affects the scope of works.
Gas supply, LPG or oil: Whether your property is on mains gas, LPG or oil changes the appliance types available. Gas Safe certification is essential for gas work — Pegasus engineers are Gas Safe Registered and LPG trained.
Controls and existing kit: Adding smart controls, flue gas heat recovery or a hot-water cylinder with immersion backup adds components and time. Decide which controls you want before the survey to get a realistic estimate.
Asbestos checks in older properties: If disturbance is needed, surveys and safe removal must be arranged.
Structural alterations: Moving the boiler to a new room or installing a new flue route through a wall can need building work or planning checks on listed buildings.
Water quality and system condition: Hard water or a system with corrosion may need chemical treatment, magnetic filters or a powerflush before fitting a new boiler.
Gather existing boiler info: Brand, model, age and any service history. Photos of the boiler, pipe runs and flue are very helpful.
Count radiators and note hot-water use: Tell the engineer how many radiators and whether you run multiple showers or bathrooms simultaneously.
Note access points: Mention loft hatches, narrow staircases or fitted kitchens.
List preferences: If you want smart controls, a particular brand or a long warranty, flag it before the visit.
Ask about certificates: Confirm the installer will provide Gas Safe paperwork and Building Regulations notification where required.
Online calculators can give a rough idea, but a free home survey reveals hidden work: pipe condition, unusual flue runs, loft access and practical installation constraints. Pegasus Plumbing & Heating offers free estimates and home surveys in Stourport-on-Severn so quotes are based on what engineers actually see.
Boiler efficiency and controls: Higher efficiency and smart controls reduce fuel use. A correctly sized boiler with TRVs and good controls is more efficient than an oversized unit.
System condition: New boilers fitted to poorly maintained systems can underperform. Treating the system and fitting magnetic filters protects the new appliance and improves longevity.
Properties along the Severn and older town-centre homes sometimes present restricted access or listed-building considerations. Pegasus engineers know local building types and can advise on the least disruptive install. For underground water pipe work we are Severn Trent Approved (Watermark plumber), which helps where external pipework or water services are involved.
Richard, our Gas engineer and heating specialist, carries out every boiler survey. He’ll inspect the property, explain options in plain English and leave a written estimate based on the actual work required. We’re Gas Safe Registered, fully insured and Verified By Expert Trades — and we provide free home surveys and clear, itemised quotes.
If you’d like a no-pressure home survey in Stourport-on-Severn or the surrounding area, call 07786160194 or email info@pegasusplumbingheating.co.uk. We’ll arrange a convenient time and give you a transparent estimate based on your home and needs.
