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Condensation & Mould Prevention

Struggling with condensation on windows, black mould in the bathroom, or damp patches on walls? Our professional ventilation solutions tackle the root cause - not just the symptoms. Bathroom fans, kitchen extractors, and whole-house PIV units installed by NAPIT registered electricians.

NAPIT Registered
Part P Compliant
Fixed Pricing
Fully Insured
Bathroom ventilation showing extractor fan and airflow illustration
90%+
Condensation Reduced
3 Solutions
To Suit Every Home
Same Week
Installation

Understanding Condensation and Mould in Your Home

Condensation is the most common cause of damp in UK homes, affecting millions of properties every year. It happens when warm, moisture-laden air meets cold surfaces like windows, exterior walls, and cold corners. The result is water droplets on windows, damp patches on walls, and the perfect conditions for black mould to grow - particularly in bathrooms, kitchens, and bedrooms.

Many homeowners try to tackle mould with sprays and bleach, but these only treat the visible symptoms. The key to solving condensation and mould problems permanently is improving ventilation - ensuring moisture-laden air is removed from your home before it has chance to condense on cold surfaces.

We offer three proven electrical solutions that address the root cause of condensation: bathroom extractor fans to remove moisture at the source during and after bathing, kitchen extractor fans to deal with cooking moisture and steam, and PIV (Positive Input Ventilation) units that provide continuous whole-house ventilation by gently introducing filtered, dry air from the loft space.

A bathroom extractor fan with a humidistat sensor automatically activates when moisture levels rise, running until the air is dry again. Modern fans are very quiet and energy efficient, costing just pennies per day to run. For kitchens, a properly sized extractor removes steam and cooking odours, preventing moisture from spreading through your home.

For properties with persistent condensation throughout the house, a PIV unit is often the most effective solution. Installed in the loft, a PIV unit draws fresh, filtered air from outside and gently pushes it into your home, creating a slight positive pressure that forces out stale, moisture-laden air through natural leakage points. PIV units are proven to reduce condensation by over 90% and are extremely energy efficient, typically costing less than £10 per year to run.

Whether you need a single extractor fan or a full whole-house ventilation strategy, our NAPIT registered electricians will assess your property and recommend the most effective solution for your specific condensation and mould problems.

Why Choose Our Service

Eliminate Condensation

Tackle the root cause of condensation with proper ventilation, not just surface treatments. Proven solutions for every room.

PIV Whole-House Ventilation

Positive Input Ventilation units reduce condensation by over 90%, providing continuous filtered air throughout your home.

Smart Extractor Fans

Modern bathroom and kitchen fans with humidistat sensors activate automatically and run whisper-quiet.

Healthier Living

Reduce mould spores and improve indoor air quality. Essential for asthma and allergy sufferers.

Low Running Costs

PIV units cost less than £10/year to run. Extractor fans cost just pennies per day. Big results, tiny bills.

NAPIT Registered

All electrical work carried out by NAPIT registered electricians with full Part P compliance and certification.

What's Involved

From your first enquiry to enjoying perfect comfort, here's how the process works.

1

Free Assessment

Contact us to describe your condensation or mould problem. We'll discuss the affected rooms and recommend the best approach.

2

Site Visit

We visit to assess your property's ventilation, identify problem areas, and recommend the right solution: extractor fans, PIV unit, or a combination.

3

Clear Quote

Receive a detailed quote for the recommended solution. We'll explain how it works, expected results, and running costs.

4

Professional Installation

Our electricians install your ventilation solution with minimal disruption. Most installations are completed in half a day.

Ready to Get Started?

Fill in the form below and we'll get back to you with a free, no-obligation quote, usually within a few hours.

Beautiful marble bathroom with LED spotlights and extractor fan
Bathroom extractor ducting installed in loft space with fan isolator
Ventilation airflow illustration showing extractor fan in action

Common Questions

During the night, your home cools down while moisture from breathing, cooking, and bathing remains in the air. When this warm, moist air meets cold window glass, it condenses into water droplets. The solution is better ventilation to remove excess moisture before it can condense. A PIV unit or properly installed extractor fans will dramatically reduce or eliminate window condensation.
A PIV (Positive Input Ventilation) unit is installed in your loft and gently pushes filtered, dry air into your home through a ceiling diffuser. This creates a slight positive pressure that forces stale, moist air out through natural gaps. It provides continuous ventilation throughout your entire home, reducing condensation by over 90%. PIV units are virtually silent and cost less than £10 per year to run.
Yes, a properly installed bathroom extractor fan with a humidistat sensor is one of the most effective ways to prevent bathroom mould. The humidistat detects rising moisture levels and automatically activates the fan, running until the air is dry. This removes moisture at the source before it can settle on walls and ceilings and create mould.
Yes, mould can cause or worsen respiratory problems including asthma, allergies, and other breathing conditions. Black mould (Stachybotrys) produces mycotoxins that can cause headaches, fatigue, and irritation. Children, elderly people, and those with existing respiratory conditions are most at risk. Proper ventilation eliminates the conditions that allow mould to grow.
Costs vary depending on whether there's an existing fan to replace, the type of fan chosen, and the complexity of ducting required. Contact us for a free quote suited to your situation. We'll recommend the right fan for the room size and explain all costs upfront.
No, extractor fans and PIV units don't require planning permission as they fall under permitted development. However, the electrical installation must comply with Building Regulations Part P. As NAPIT registered electricians, we self-certify all work.

Condensation & Across West Yorkshire

Based in Pontefract and covering the Five Towns, Wakefield, Leeds, and Selby. Find us in any of these areas:

Get Your Free Quote

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What happens next?

  1. 1

    We review your enquiry

    Usually within a few hours during business hours.

  2. 2

    We get in touch

    Via your preferred contact method to discuss your requirements.

  3. 3

    You receive a clear quote

    A fixed-price quote with no hidden fees or obligations.

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07562 986697

Mon-Fri 8am-6pm, Sat 9am-4pm

Reviews

What Our Customers Say

5from 56 Google reviews
Google Review

Jason did a fantastic job installing my Hypervolt Home 3 Pro charger. He was professional, friendly, and his workmanship was excellent. The installation is incredibly neat and tidy...

steffan

steffan

Jul 2026

Google Review

Jason arrived on time and carried out the job very efficiently. Very friendly and respectful of the property he is working in. Jason is very experienced and gave me some great advi...

Chris O'Donnell

Chris O'Donnell

Jul 2026

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Brilliant work, quick & efficient. Jason was friendly and tidy. Turns up when he says he will do.

Darren Marsh

Darren Marsh

Jun 2026

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Honest lad takes pride in his work explains everything. also takes his time to make everything neat and tidy would definitely recommend for anything electricial, 4x double sockets ...

Craig Rooke

Craig Rooke

Jun 2026

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Highly recommend Jason, he came out to us and did an amazing job, very professional polite and excellent communication. Will definitely be using circuit works again for future work...

Tara Elizaveth

Tara Elizaveth

May 2026

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Spot on electrician .Circuit Works for me if you ever need a sparky.👍

craig coupe

craig coupe

May 2026

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Jason did a great job with all the electrical works we needed when moving into our new house including new sockets, removing old wiring, installing bedside lights and a new bathroo...

Sophie Houghton

Sophie Houghton

May 2026

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Amazing service 🌟— very professional and friendly throughout. Jason and his colleague were fantastic. They completed the job to an excellent standard and even finished earlier tha...

S

S

Apr 2026

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Fantastic service. Great price. Great work.

Callum Farraway

Callum Farraway

Apr 2026

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Thoroughly professional from start to finish. Very diligent and very well priced. Highly recommended!

Brett Mathews

Brett Mathews

Apr 2026

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Highly recommend! Found route problem and fixed promptly, very reasonably priced and will certainly contact again for any future problems 5*

Lyndsey Smith

Lyndsey Smith

Apr 2026

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I can’t recommend Jason and Ben highly enough - I’m super happy with the full house rewiring done by them. Jason is very reliable, experienced, and knowledgeable professional. I wi...

Paulina B.

Paulina B.

Mar 2026

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Excellent job, reliable and professional wouldn’t hesitate to recommend. Thank you!

Jessica Swinley

Jessica Swinley

Feb 2026

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So pleased, Jason did a great job, fitting my new light and replacing a switch. Highly recommend Circuit works!

Emma Thomas

Emma Thomas

Feb 2026

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I can’t recommend Jason highly enough. Extremely late in the day (out of hours), a contractor accidentally drilled through an electric cable in my house, knocking out the boiler in...

Benjamin White

Benjamin White

Nov 2025

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A* service perfect wiring and to a very high standard!

Sam Bailey

Sam Bailey

Nov 2025

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Great communication, excellent service and first class job

ThomasHodgins

ThomasHodgins

Oct 2025

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Best around fitted our new shower with no issues works lovely now thank you will definitely be recommending you in the future really good priced too

Timmy Goodwin

Timmy Goodwin

Sept 2025

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I recently had my whole house rewired,From start to finish, Jason was professional, reliable, and extremely thorough. He was very patient and explained everything really clearly, e...

ping he

ping he

Aug 2025

Google Review

Outstanding job by Jason. 2 Additional Sockets and 1 Relocated. He replied vary quickly when I posted the Job for quotes, managed to fit us in at short notice as the Plasterers wer...

ROBERT MALLOCH

ROBERT MALLOCH

Aug 2025

Google Review

Josh Rodriguez

Josh Rodriguez

Aug 2025

Google Review

Have used Jason several times over the last year, from replacing the consumer unit, installing power to the garage and doing all the electrics for a new kitchen. He is very experie...

James Boyd

James Boyd

Aug 2025

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Absolutely fantastic, professional and efficient on a fault finding job. Really went above and beyond. Would definitely recommend and use again!

Joel Capener

Joel Capener

Jul 2025

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Jason & his team sorted out a wiring issue with a shower and replaced the main fuse board. From start to finish, they were professional, courteous and efficient. Communication was ...

Jo

Jo

Jun 2025

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Managed to come out really quick & sort the issue we had. Really professional, personable & clued up. Will use again! 😁

Shanice Bellot

Shanice Bellot

May 2025

Google Review

Highly recommend. Great guy who is respectful, honest, and professional.

Emma Metcalfe

Emma Metcalfe

May 2025

Google Review

Amazing service. Would highly recommend 👌

Leighsha Senior

Leighsha Senior

May 2025

Google Review

Great service, very friendly and came round within an hour of accepting the job and sorted it quickly.

DanH835

DanH835

May 2025

Google Review

Really pleased from start to finish. Great communication from the outset. Following the initial contact, Jason visited our property to complete a quote (others did this through Wha...

Ash Duncan

Ash Duncan

Apr 2025

Google Review

Fabulous, prompt call out, professional and resolved the issue quickly. Highly recommend! Thank you Jason

Donna Kempalicious

Donna Kempalicious

Apr 2025

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Jason did a great job installing a double outside socket, and three new indoor double sockets, giving us power outside for garden tasks and allowing us to create a brand new indoor...

Jeff

Jeff

Mar 2025

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We had electrics installed in our garage, cabling had to come from the house and run to the garage involving a lot of digging out for the cable, a consumer unit, sockets and lights...

Banks Giselle

Banks Giselle

Mar 2025

Google Review

Highly recommended, arrived when he said he would, quoted quickly, work done to a high standard.

G Knight

G Knight

Mar 2025

Google Review

From the very outset - from the first visit to installation - every aspect of dealing with Circuit Works has exceeded expectation. The quality of Jasons work is exceptional. His sk...

Joanne Hamilton-Stretton

Joanne Hamilton-Stretton

Feb 2025

Google Review

Jason was prompt, friendly and helpful and fitted our electric shower efficiently, all in all an excellent service!

Lynne Bates

Lynne Bates

Dec 2024

Google Review

Jason was brilliant and incredibly professional, the installation was excellently done all while near a torrential downpour was hitting. Would definitely hire again for any electri...

Sebastian Whatnall Georghiou

Sebastian Whatnall Georghiou

Nov 2024

Google Review

Great service, highly recommend for all electrical jobs! Very knowledgeable about his work, and a great amount of care to do the job to the best quality. Better prices than other e...

Oli Walwyn

Oli Walwyn

Aug 2024

Google Review

Excellent service from Jason! Highly recommend.

S M

S M

Aug 2024

Google Review

Jason lovely chap and reliable. Used him a couple of times now and would defo recommend 👍🏻

Colleen Hunter

Colleen Hunter

Aug 2024

Google Review

Polite, punctual, professional ☺️ Thank you.

Claire Holmes

Claire Holmes

Aug 2024

Google Review

Highly recommended. Jason fixed my issue quickly and effectively, he was friendly and informative. I will not hesitate to use circuit works again, thanks Jason

Ryan Howden

Ryan Howden

Aug 2024

Google Review

Rewired our house and did an amazing job, even though his apprentice let him down he ensured the job got done on time and to a high standard. Would highly recommend and will be usi...

Saeed Younus

Saeed Younus

Jul 2024

Google Review

Excellence service - encountered a problem with my sockets and needed quick resolution which Jason was able to provide. Rung him on morning and he was sorting problem out in aftern...

James Lane

James Lane

Jul 2024

Google Review

Jason carried out some electrical works for us at our new house. He put electrics into our garage consisting of multiple sockets and lights and also sockets for our appliances in ...

Maggie Beasley

Maggie Beasley

Jul 2024

Google Review

Jason is extremely professional and knowledgeable with incredibly high work ethic. I would recommend to anyone and will certainly be a return customer. He carried out wonderful wor...

M Lin

M Lin

Jul 2024

Google Review

Professional, friendly and turned up the same day for a quote! All the work was done perfectly and how we wanted it. Will definitely use again. Thanks Jason 😊

Claire Appleton

Claire Appleton

Jun 2024

Google Review

Absolutely first class service . Polite professional and very caring . Open and honest and no hidden extra charges. Very reasonable prices . Would recommend Jason and I certainly...

Carole Smith

Carole Smith

May 2024

Google Review

Jason installed spot lights in my bedroom ceiling. The whole experience was very professional. Communication was good. The work was carried out quickly and everything was neat and ...

Jerome Murphy

Jerome Murphy

May 2024

Google Review

Fantastic company. Great communication & did a good job. Put my mind at rest on safety of a light fitting & gave me good advice on current state of outside wiring. Would definitely...

Nikki Anson

Nikki Anson

Feb 2024

Google Review

Fantastic service I would highly recommend Very professional polite and honest

Claire Griffin

Claire Griffin

Feb 2024

Google Review

Arrived on time. Very nice guy. Upgraded an old fuse box after doing an electrical safety test. Also fitted outdoor sockets. Explained everything as he was going along. Even tidied...

Tyra Senior

Tyra Senior

Feb 2024

Google Review

Sam Steer

Sam Steer

Feb 2024

Google Review

Highly recommended. Did a very neat electrical wiring project with heating and lights installation. Offered very helpful suggestions to ensure the project went smoothly. Gave clear...

Olugbenga Michael Aworanti

Olugbenga Michael Aworanti

Feb 2024

Google Review

I called him for a emergency and he came immediately, good service...

Maria Martinez

Maria Martinez

Feb 2024

Google Review

Outstanding Electrician!!! Very reliable, friendly, reasonable priced. No job too big or small a problem. Would not use any other Electrician. Had quite a few jobs done now by Jaso...

Tracey Daniel

Tracey Daniel

Nov 2023

Google Review

Circuit works have completed a range of electrical work for me in my home and I wouldn’t use anyone else. Trustworthy and reliable, friendly and efficient. Always a high standard o...

Heather Smith

Heather Smith

Nov 2023

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