--- title: "Boiler Installation | Northstar Plumbing" description: "Planned boiler replacement and installation with correct sizing, safe commissioning and certification. Clear quote, tidy work, minimal disruption." canonical: "https://www.northstarplumbing.co.uk/services/boiler-installation" --- ![Technician adjusts copper pipes beneath a white wall-mounted boiler](/_next/image?url=%2Fapi%2Fmedia%2Ffile%2Ftechnician-adjusts-copper-pipes-boiler.jpg%3Fv%3D1768575128662&w=1536&q=75&dpl=dpl_DEc4fGhEc1SCRZZutzoEsRuDy1CJ) Boiler Installation & Replacement # Boiler Installation [Contact Us](https://www.northstarplumbing.co.uk/redirect) Boiler installation replaces an unreliable or inefficient boiler with a new unit that is correctly sized, safely fitted and properly commissioned. It is a planned service designed to improve heating performance, hot water reliability and running costs, with clear communication from survey through to handover. ## What boiler installation covers A boiler installation is more than swapping one appliance for another. The aim is a safe, compliant set-up that works efficiently with your home and your existing heating and hot water system. Typical work includes: - Assessing your current system, usage, and the right boiler output for the property - Advising on suitable boiler types and controls for how you use heating and hot water - Isolating, removing and disposing of the old boiler (where replacement is agreed) - Installing the new boiler, flue and condensate route to current requirements - Connecting to existing pipework, with modifications where needed for safety and performance - Checking system pressure and integrity, then commissioning the boiler to manufacturer standards - Balancing and setting up basic controls, thermostat and programmer where applicable - Completing required safety checks and providing the correct certification and user guidance ### When this service is most relevant - Your boiler is breaking down regularly or parts are becoming hard to source. - Heating is uneven, hot water is unreliable, or the boiler is struggling to keep up. - You want improved efficiency and better control over comfort and energy use. - You are upgrading a property for tenants or refurbishing and need a dependable system. ### How the installation is delivered You will usually start with a site survey to confirm the right specification and any constraints such as flue position, condensate routing, gas supply and available space. A clear scope of works is agreed before any installation day is booked. Most like-for-like boiler replacements can be completed within a day. Conversions, relocations or system upgrades can take longer, and the timing is confirmed in advance so you can plan around it. ### After installation: commissioning, paperwork and handover Once fitted, the boiler is commissioned and tested so you have confidence it is operating safely and as intended. You are shown how to use the basic controls and what to check if you ever lose pressure or need to reset the appliance. You will also receive the appropriate documentation for compliance and future servicing, helping protect warranties and making life easier for landlords and homeowners alike. [Contact Us](https://www.northstarplumbing.co.uk/redirect) ## Client Reviews 5.0 Based on 6 reviews - A Andrew C. > Phoned because of a boiler that kept cutting out. Feels properly sorted now. Quick job and no mess left behind. Really pleased overall. - A Aaron H. > Called them out for an old boiler that needed replacing. Got it resolved on the first call-out. The plumber was punctual and easy to deal with. Clear, professional service from start to finish. I'd happily book them again. - R Rob J. > We needed help with an old boiler that needed replacing. Clean, efficient work. James was calm, tidy and clearly knew what they were doing. Glad we went with them. Show all reviews - R Rachel T. > Reached out when we noticed a boiler that kept cutting out. No fuss and no surprise add-ons. Glad we went with them. - S Sarah P. > After a few days of an old boiler that needed replacing, we gave them a ring. The engineer who came out was polite and knew their stuff. It was dealt with quickly, which was a relief. Clear, professional service from start to finish. I'd happily book them again. Couldn’t fault it. - D Daniel M. > We'd been putting up with an old boiler that needed replacing and finally called. Mark turned up on time and was a pleasure to deal with. They explained the next steps clearly before turning up. We finally have peace of mind. Wouldn't hesitate to recommend them. 5/5. ## Frequently Asked Questions Do you help me choose the right boiler? Yes. The choice is based on property size, hot water demand, existing system type and how you use the heating. You will be given practical options, not a one size fits all recommendation. Will you remove the old boiler and dispose of it? In most replacements, yes. The old boiler is safely isolated, removed and taken away as part of the agreed scope. Any necessary making good around the immediate work area can be discussed upfront. How long does a boiler installation take? Many straightforward replacements can be completed in a day. If the job involves relocating the boiler, changing system type, or upgrading controls and pipework, it can take longer. You will be given an expected timeframe before work starts. What paperwork will I receive after installation? You will receive the required commissioning documentation and the relevant compliance certification. This is important for building regulations, landlord records and manufacturer warranty requirements. Keep it with your boiler manual for future servicing. Do I need a powerflush or system clean with a new boiler? It depends on the condition of your existing system and whether there is sludge or debris present. Where needed, a proper clean helps protect the new boiler and improve circulation. The best approach is confirmed after assessing the system. [Contact Us](https://www.northstarplumbing.co.uk/redirect) ## Related Services Complete your experience with these services - System Boiler Installation [View](/services/system-boiler-installation) - Replacement Boiler with Powerflush [View](/services/replacement-boiler-with-powerflush) - Oil Boiler Installation [View](/services/oil-boiler-installation) - LPG Boiler Installation [View](/services/lpg-boiler-installation) Show more services - Conventional Boiler Installation [View](/services/conventional-boiler-installation) - Combi Boiler Installation [View](/services/combi-boiler-installation) - Boiler Upgrade [View](/services/boiler-upgrade) - Boiler Replacement [View](/services/boiler-replacement) - Boiler Relocation [View](/services/boiler-relocation) - Boiler Installation with Controls Upgrade [View](/services/boiler-installation-with-controls-upgrade) - Boiler Installation for Landlords [View](/services/boiler-installation-for-landlords) - Boiler Installation Survey [View](/services/boiler-installation-survey) - Boiler Installation & Commissioning [View](/services/boiler-installation-and-commissioning) - Boiler Conversion [View](/services/boiler-conversion)