---
title: Is A Power Flush Necessary For A New Boiler
description: Should you power flush your system when installing a new boiler? Find out if you need boiler service and power for optimal performance and longevity
image: https://www.trustedboiler.co.uk/hubfs/Is-A-Power-Flush-Necessary-When-Installing-A-New-Boiler.png
---

[info@trustedboiler.co.uk](mailto:info@trustedboiler.co.uk) [+44 7962389588](tel:447962389588)

Operating Hours: Monday - Friday 9am to 5pm

[128 City Road, London, EC1V 2NX](https://maps.app.goo.gl/dZWugXN2aW2tVucq5) [0208 088 9899](tel:0208%20088%209899)

<https://www.facebook.com/TrustedBoilersltd/>

<https://x.com/HubSpot> <https://www.instagram.com/hubspot/> <https://developers.hubspot.com/slack>

[![trusted boilers logo](https://www.trustedboiler.co.uk/hs-fs/hubfs/trusted%20boilers%20logo.webp?width=1684&height=200&name=trusted%20boilers%20logo.webp "trusted boilers logo")](https://www.trustedboiler.co.uk/)

[![trusted boilers logo](https://www.trustedboiler.co.uk/hs-fs/hubfs/trusted%20boilers%20logo.webp?width=1684&height=200&name=trusted%20boilers%20logo.webp "trusted boilers logo")](https://www.trustedboiler.co.uk/)

- [Home](https://www.trustedboiler.co.uk)
- Services 
    - [Heat Only Boiler Installation](https://www.trustedboiler.co.uk/boiler-packs)
    - [Combi Boiler Installation](https://www.trustedboiler.co.uk/combi-boiler-installation)
    - [Boiler Repairs](https://www.trustedboiler.co.uk/boiler-repairs)
    - [Boiler Servicing](https://www.trustedboiler.co.uk/boiler-servicing)
    - [Boiler Maintenance](https://www.trustedboiler.co.uk/boiler-maintenance-services)
    - [Gas Safety Certificate](https://www.trustedboiler.co.uk/gas-safety-certificates)
- About Us
    - [About](https://www.trustedboiler.co.uk/about-us)
    - [Testimonials](https://www.trustedboiler.co.uk/testimonials)
    - [Blog](https://www.trustedboiler.co.uk/blog)
- Who we help
    - [Home Owners](https://www.trustedboiler.co.uk/homeowners)
    - [Landlords](https://www.trustedboiler.co.uk/landlords)
- [Pay Online](https://www.paypal.com/paypalme/TrustedBoilersLtd?country.x=GB&locale.x=en_GB)

More results

[Instant Quote](https://www.trustedboiler.co.uk/get-an-instant-quote)

[Instant Quote](https://www.trustedboiler.co.uk/get-an-instant-quote)

[Instant Quote](https://www.trustedboiler.co.uk/get-an-instant-quote)

- [Home](https://www.trustedboiler.co.uk)
- Services
  
  
  
  
  
  
  
  
  
    - [Heat Only Boiler Installation](https://www.trustedboiler.co.uk/boiler-packs)
    - [Combi Boiler Installation](https://www.trustedboiler.co.uk/combi-boiler-installation)
    - [Boiler Repairs](https://www.trustedboiler.co.uk/boiler-repairs)
    - [Boiler Servicing](https://www.trustedboiler.co.uk/boiler-servicing)
    - [Boiler Maintenance](https://www.trustedboiler.co.uk/boiler-maintenance-services)
    - [Gas Safety Certificate](https://www.trustedboiler.co.uk/gas-safety-certificates)
- About Us
  
  
  
  
  
  
  
  
  
    - [About](https://www.trustedboiler.co.uk/about-us)
    - [Testimonials](https://www.trustedboiler.co.uk/testimonials)
    - [Blog](https://www.trustedboiler.co.uk/blog)
- Who we help
  
  
  
  
  
  
  
  
  
    - [Home Owners](https://www.trustedboiler.co.uk/homeowners)
    - [Landlords](https://www.trustedboiler.co.uk/landlords)
- [Pay Online](https://www.paypal.com/paypalme/TrustedBoilersLtd?country.x=GB&locale.x=en_GB)

[Instant Quote](https://www.trustedboiler.co.uk/get-an-instant-quote)

[0208 088 9899](tel:0208%20088%209899) [info@trustedboiler.co.uk](mailto:info@trustedboiler.co.uk)

<https://www.facebook.com/TrustedBoilersltd/>

[Boiler Service](https://www.trustedboiler.co.uk/blog/tag/boiler-service)

# [Is A Power Flush Necessary When Installing A New Boiler?](https://www.trustedboiler.co.uk/blog/is-a-power-flush-neccessary)

[![Eric Saayeng](https://dy2z8v53j00u8.cloudfront.net/images/placeholders/profile.png)](https://www.trustedboiler.co.uk/blog/author/eric-saayeng)

by [Eric Saayeng](https://www.trustedboiler.co.uk/blog/author/eric-saayeng)

 2 min read

 Jan 27, 2025 11:30:00 AM

All Topics

[All Topics](https://www.trustedboiler.co.uk/blog)[Boiler Service](https://www.trustedboiler.co.uk/blog/tag/boiler-service)[Boiler Maintenance](https://www.trustedboiler.co.uk/blog/tag/boiler-maintenance)[Boiler Repair](https://www.trustedboiler.co.uk/blog/tag/boiler-repair)[South London](https://www.trustedboiler.co.uk/blog/tag/south-london)[Boiler Installation](https://www.trustedboiler.co.uk/blog/tag/boiler-installation)[Heating advice](https://www.trustedboiler.co.uk/blog/tag/heating-advice)[Homeowners](https://www.trustedboiler.co.uk/blog/tag/homeowners)[Boiler Error Codes](https://www.trustedboiler.co.uk/blog/tag/boiler-error-codes)[Boiler Safety](https://www.trustedboiler.co.uk/blog/tag/boiler-safety)[Energy Saving](https://www.trustedboiler.co.uk/blog/tag/energy-saving)[Fault Code](https://www.trustedboiler.co.uk/blog/tag/fault-code)[New Boiler Cost](https://www.trustedboiler.co.uk/blog/tag/new-boiler-cost)[Gas Safe](https://www.trustedboiler.co.uk/blog/tag/gas-safe)[combi boiler](https://www.trustedboiler.co.uk/blog/tag/combi-boiler)[Boiler Condemned](https://www.trustedboiler.co.uk/blog/tag/boiler-condemned)[Boiler at risk](https://www.trustedboiler.co.uk/blog/tag/boiler-at-risk)[Room Thermostat](https://www.trustedboiler.co.uk/blog/tag/room-thermostat)[Energy efficiency](https://www.trustedboiler.co.uk/blog/tag/energy-efficiency)[SMART thermostat](https://www.trustedboiler.co.uk/blog/tag/smart-thermostat)

Due to their healthy lifespans, [having a new boiler installed](https://www.trustedboiler.co.uk/blog/combi-boiler-in-loft) is something that most people will experience only four or five times. As such, it is worth giving it due care and attention. One of the questions that many people ask is whether a [boiler service and power flush](https://www.trustedboiler.co.uk/boiler-servicing) is necessary when installing a new boiler.

In this article, we take a deep dive into the answer.

[![Get My Service](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/144823757/interactive-118235707582.png)](https://www.trustedboiler.co.uk/hs/cta/wi/redirect?encryptedPayload=AVxigLI%2Bn1MVY5IrTX%2FtU%2BIDqnkow1PpoM6F8lmMfHyXGEqgxmS6Z%2B3WfKf533Uxztbkw0Q52t6qdEvRyTkqGjF%2FcqEt6nfcDhiqfV7nEnIXQ7s44AYc7Kmxa6x5D6UG2i7Je50CfASy%2FrsJRAhQD5vrzsVZKveq2tyQpzKl0lCj%2BH%2BOIdAb73qdXyJJy5Sludjc2%2Fhkg%2BcOjyVV&webInteractiveContentId=118235707582&portalId=144823757)

## **What Is A Boiler Power Flush?**

Every central heating and hot water system accumulates sludge and debris. This has nothing to do with how clean your water is, or how new your pipes are. Instead, it is a result of the complex chemistry involved in mixing water, metal, and heating components. A power flush sends a strong jet of water through the system, removing both the existing sludge and the built-up debris on the inside of the pipes. The result is a clean, smooth, efficient system.

## **When Do You Need Boiler Service and Power Flush?**

All boilers will accumulate sludge, and this has multiple negative effects. The first is inefficiency. Backed-up systems require more energy to operate, leading to higher costs. Sludge in the heating system can also put pressure on critical components such as valves, which can result in damage that may ultimately lead to very expensive breakdowns. [Annual boiler servicing](https://www.trustedboiler.co.uk/boiler-servicing) is an excellent way of identifying minor problems, while power flushing every 5-6 years can minimise the risk of problems developing in the first place.

## **Are There Any Signs That A Boiler Needs An Immediate Power Flush?**

If your system is becoming inefficient, sluggish, or more expensive than you expect, it is likely that it will benefit from a power flush. However, there are some very clear signs that the sludge and debris in your system has reached dangerous levels. One of these is finding dirty water during a radiator bleed. Dirty water is visible evidence of the type of sludge-causing rust and debris that is cleared out when [power flushing a boiler](https://www.trustedboiler.co.uk/boiler-servicing). The dirtier the water, the more serious the problem, with black sludge being the most worrying symptom.

## **Benefits Of Power Flushing Your Heating System**

Once a boiler has been power flushed, there are a range of benefits. Some of these are immediately noticeable, and some are only apparent years down the line. The most obvious effect of this is lower heating bills, additionally the improved flow of water increases efficiency and reducing energy consumption. The increased efficiency can have additional benefits, such as reduced noise, increased temperature reliability, and fewer faults. When the system is power-flushed every 5 to 6 years, it has the additional benefit of potentially preventing breakdowns in the future, making it an excellent long-term cost saving.

## **Considering A Boiler Service and Power Flush?**

To start taking care of the immediate and long-term health of your central heating system. Trusted Boilers can help. [Book a visit](https://www.trustedboiler.co.uk/book-a-boiler-service) from our boiler experts today.

[![3-Sep-24-2024-10-08-38-8224-AM](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/144823757/interactive-116213478118.png)](https://www.trustedboiler.co.uk/hs/cta/wi/redirect?encryptedPayload=AVxigLJaZMJ6bmT6nnzxjst%2FaR35EYBBrIMuZstRsTwsBpxGHYul%2B8BKf%2B4nlUyka1meGJScC0PTLBBoLISeqpQDV2CPIqF6cCtpMFRWJVmZQVmFWhOaeHvn%2FUlSLQJWylRgI0reMwgTUCLadDqzHKsRPviFQWQC0HwG4xEndBwgmvfG5QQ4AY%2BOKQQO87rdivmD0YVhp6cvsHTW&webInteractiveContentId=116213478118&portalId=144823757)

- Recent
- Topics
- Archive

Recent

Topics

- [Boiler Service (18)](https://www.trustedboiler.co.uk/blog/tag/boiler-service)
- [Boiler Maintenance (15)](https://www.trustedboiler.co.uk/blog/tag/boiler-maintenance)
- [Boiler Repair (10)](https://www.trustedboiler.co.uk/blog/tag/boiler-repair)
- [South London (9)](https://www.trustedboiler.co.uk/blog/tag/south-london)
- [Boiler Installation (8)](https://www.trustedboiler.co.uk/blog/tag/boiler-installation)
- [Heating advice (8)](https://www.trustedboiler.co.uk/blog/tag/heating-advice)
- [Homeowners (8)](https://www.trustedboiler.co.uk/blog/tag/homeowners)
- [Boiler Error Codes (7)](https://www.trustedboiler.co.uk/blog/tag/boiler-error-codes)
- [Boiler Safety (4)](https://www.trustedboiler.co.uk/blog/tag/boiler-safety)
- [Energy Saving (4)](https://www.trustedboiler.co.uk/blog/tag/energy-saving)
- [Fault Code (4)](https://www.trustedboiler.co.uk/blog/tag/fault-code)
- [New Boiler Cost (4)](https://www.trustedboiler.co.uk/blog/tag/new-boiler-cost)
- [Gas Safe (3)](https://www.trustedboiler.co.uk/blog/tag/gas-safe)
- [combi boiler (3)](https://www.trustedboiler.co.uk/blog/tag/combi-boiler)
- [Boiler Condemned (2)](https://www.trustedboiler.co.uk/blog/tag/boiler-condemned)
- [Boiler at risk (2)](https://www.trustedboiler.co.uk/blog/tag/boiler-at-risk)
- [Room Thermostat (2)](https://www.trustedboiler.co.uk/blog/tag/room-thermostat)
- [Energy efficiency (1)](https://www.trustedboiler.co.uk/blog/tag/energy-efficiency)
- [SMART thermostat (1)](https://www.trustedboiler.co.uk/blog/tag/smart-thermostat)

See all

Archive

- [June 2026 (2)](https://www.trustedboiler.co.uk/blog/archive/2026/06)
- [April 2026 (2)](https://www.trustedboiler.co.uk/blog/archive/2026/04)
- [March 2026 (1)](https://www.trustedboiler.co.uk/blog/archive/2026/03)
- [February 2026 (2)](https://www.trustedboiler.co.uk/blog/archive/2026/02)
- [January 2026 (3)](https://www.trustedboiler.co.uk/blog/archive/2026/01)
- [December 2025 (2)](https://www.trustedboiler.co.uk/blog/archive/2025/12)
- [November 2025 (2)](https://www.trustedboiler.co.uk/blog/archive/2025/11)
- [October 2025 (1)](https://www.trustedboiler.co.uk/blog/archive/2025/10)
- [September 2025 (3)](https://www.trustedboiler.co.uk/blog/archive/2025/09)
- [August 2025 (2)](https://www.trustedboiler.co.uk/blog/archive/2025/08)
- [July 2025 (1)](https://www.trustedboiler.co.uk/blog/archive/2025/07)
- [June 2025 (1)](https://www.trustedboiler.co.uk/blog/archive/2025/06)
- [May 2025 (1)](https://www.trustedboiler.co.uk/blog/archive/2025/05)
- [April 2025 (2)](https://www.trustedboiler.co.uk/blog/archive/2025/04)
- [March 2025 (1)](https://www.trustedboiler.co.uk/blog/archive/2025/03)
- [February 2025 (3)](https://www.trustedboiler.co.uk/blog/archive/2025/02)
- [January 2025 (2)](https://www.trustedboiler.co.uk/blog/archive/2025/01)
- [October 2024 (2)](https://www.trustedboiler.co.uk/blog/archive/2024/10)
- [September 2024 (2)](https://www.trustedboiler.co.uk/blog/archive/2024/09)
- [August 2024 (2)](https://www.trustedboiler.co.uk/blog/archive/2024/08)

See all

### Subscribe to our blog

Share this

[Share on Twitter](https://twitter.com/share?url=https://www.trustedboiler.co.uk/blog/is-a-power-flush-neccessary&text=Is%20A%20Power%20Flush%20Necessary%20For%20A%20New%20Boiler) [Share on Facebook](https://www.facebook.com/sharer/sharer.php?u=https://www.trustedboiler.co.uk/blog/is-a-power-flush-neccessary&t=Is%20A%20Power%20Flush%20Necessary%20For%20A%20New%20Boiler) [Share on LinkedIn](https://www.linkedin.com/shareArticle?mini=true&url=https://www.trustedboiler.co.uk/blog/is-a-power-flush-neccessary&t=Is%20A%20Power%20Flush%20Necessary%20For%20A%20New%20Boiler)

Previous story

[← 3 Main Boiler Fault Codes To Look Out For During Winter](https://www.trustedboiler.co.uk/blog/main-boiler-fault-codes-during-winter)

<https://www.trustedboiler.co.uk/blog>

Next story

[How Often Should You Get Your Boiler Serviced? →](https://www.trustedboiler.co.uk/blog/get-your-boiler-serviced)

## You May Also Like

These Related Stories

[Boiler Repair: Is Steam from Your Flue Normal?](https://www.trustedboiler.co.uk/blog/boiler-repair-steam-flue)

![White steam plume coming from a modern condensing boiler flue](https://www.trustedboiler.co.uk/hubfs/generated-image-2025-12-11%20(2).png)

[Boiler Service](https://www.trustedboiler.co.uk/blog/tag/boiler-service)

### Boiler Repair: Is Steam from Your Flue Normal?

Dec 11, 2025 10:00:20 AM 2 min read

[Combi Boiler Installation: The Ultimate Guide for London Homes](https://www.trustedboiler.co.uk/blog/combi-boiler-installation-the-ultimate-guide-for-london-homes)

![Combi boiler installation in South London home – Trusted Boilers](https://www.trustedboiler.co.uk/hubfs/20250411_195908.jpg)

[New Boiler Cost](https://www.trustedboiler.co.uk/blog/tag/new-boiler-cost)

### Combi Boiler Installation: The Ultimate Guide for London Homes

Nov 17, 2025 11:35:15 AM 1 min read

[Boiler Fault Codes Explained: What They Mean and When to Call an Engineer](https://www.trustedboiler.co.uk/blog/boiler-fault-codes)

![“Boiler display showing a fault code on a modern gas boiler”](https://www.trustedboiler.co.uk/hubfs/20251118_190222.jpg)

[Boiler Service](https://www.trustedboiler.co.uk/blog/tag/boiler-service)

### Boiler Fault Codes Explained: What They Mean and When to Call an Engineer

Nov 18, 2025 8:54:28 PM 4 min read

### Get Email Notifications

[![trusted boilers logo](https://www.trustedboiler.co.uk/hs-fs/hubfs/trusted%20boilers%20logo.webp?width=363&height=43&name=trusted%20boilers%20logo.webp "trusted boilers logo")](https://www.trustedboiler.co.uk/)

Address: 42 Crispin Cres, Beddington, Croydon, CR0 4UE

Phone : [07930216914](tel:%20+44%207930216914)

Email : [info@trustedboiler.co.uk](mailto:info@trustedboiler.co.uk)

![Gas Safe](https://www.trustedboiler.co.uk/hs-fs/hubfs/Gas%20Safe.webp?width=77&height=113&name=Gas%20Safe.webp)

Services

- [Heat Only Boiler Installation](https://www.trustedboiler.co.uk/boiler-packs)
- [Combi Boiler Installation](https://www.trustedboiler.co.uk/combi-boiler-installation)
- [Boiler Repairs](https://www.trustedboiler.co.uk/boiler-repairs)
- [Boiler Servicing](https://www.trustedboiler.co.uk/boiler-servicing)

Resources

- [Home](https://www.trustedboiler.co.uk)
- [About Us](https://www.trustedboiler.co.uk/about-us)
- [Blog](https://www.trustedboiler.co.uk/blog)
- [Instant quote](https://www.trustedboiler.co.uk/get-an-instant-quote)
- [Book a boiler service](https://www.trustedboiler.co.uk/book-a-boiler-service)
- [Book free video call survey](https://www.trustedboiler.co.uk/book-a-free-video-call-survey)

Where we cover

- [Croydon](https://www.trustedboiler.co.uk/croydon)
- [South London](https://www.trustedboiler.co.uk/south-london)
- [Wimbledon](https://www.trustedboiler.co.uk/wimbledon)
- [Sutton](https://www.trustedboiler.co.uk/sutton)
- [Kingston](https://www.trustedboiler.co.uk/kingston)
- [Epsom](https://www.trustedboiler.co.uk/epsom)
- [Banstead](https://www.trustedboiler.co.uk/banstead)
- [Coulsdon](https://www.trustedboiler.co.uk/coulsdon)

Copyright © 2026 Trusted Boilers Ltd. Designed and Developed by[JDR Group.](http://www.jdrgroup.co.uk)

VAT: 394509661 | Company Number: 10558552

- [Terms](https://144823757.hs-sites-eu1.com/terms-conditions)
- [Privacy](https://144823757.hs-sites-eu1.com/privacy-policy)
- [Cookies](https://144823757.hs-sites-eu1.com/cookie-policy)

```json
{
  "@context" : "https://schema.org",
  "@type" : "BlogPosting",
  "author" : {
    "@type" : "Person",
    "name" : "Eric Saayeng",
    "url" : "https://www.trustedboiler.co.uk/blog/author/eric-saayeng"
  },
  "dateModified" : "2025-01-27T11:30:00.701Z",
  "datePublished" : "2025-01-27T11:30:00.000Z",
  "headline" : "Is A Power Flush Necessary For A New Boiler",
  "image" : [ "https://www.trustedboiler.co.uk/hubfs/Is-A-Power-Flush-Necessary-When-Installing-A-New-Boiler.png" ],
  "mainEntityOfPage" : {
    "@id" : "https://www.trustedboiler.co.uk/blog/is-a-power-flush-neccessary",
    "@type" : "WebPage"
  },
  "publisher" : {
    "@type" : "Organization",
    "logo" : {
      "@type" : "ImageObject",
      "url" : "https://www.trustedboiler.co.uk/hubfs/Trusted%20boilers%20logo.png"
    }
  }
}
```

```json
{
  "@context" : "https://schema.org",
  "@type" : "LocalBusiness",
  "address" : {
    "@type" : "PostalAddress",
    "addressCountry" : "UK",
    "addressLocality" : "Croydon",
    "addressRegion" : "England",
    "postalCode" : "CR0 4UE",
    "streetAddress" : "42 Crispin Cres, Beddington"
  },
  "alternateName" : "Trusted Boilers",
  "contactPoint" : {
    "@type" : "ContactPoint",
    "areaServed" : "GB",
    "availableLanguage" : "en",
    "contactType" : "customer service",
    "telephone" : "0208 088 9889"
  },
  "geo" : {
    "@type" : "GeoCoordinates",
    "latitude" : 51.3773,
    "longitude" : -0.1149
  },
  "image" : "https://www.trustedboiler.co.uk/hubfs/How-Long-Does-It-Take-To-Install-A-New-Gas-Boiler.png",
  "logo" : "https://www.trustedboiler.co.uk/hs-fs/hubfs/trusted%20boilers%20logo.webp?width=1684&height=200&name=trusted%20boilers%20logo.webp",
  "name" : "Trusted Boilers Ltd",
  "openingHours" : [ "Mo 08:00-17:30", "Tu 08:00-17:30", "We 08:00-17:30", "Th 08:00-17:30", "Fr 08:00-17:30", "Sa 09:00-13:00", "Su Closed" ],
  "priceRange" : "£",
  "sameAs" : [ "https://www.facebook.com/TrustedBoilersltd", "https://www.instagram.com/trusted_boilers22/" ],
  "telephone" : "020 4572 0304",
  "url" : "https://www.trustedboiler.co.uk/"
}
```