ventilation issues causing damp mould and condensation

Domestic Ventilation Solutions

RTC provides professional domestic ventilation solutions designed to improve indoor air quality, control excess moisture and create healthier, more comfortable homes. From PIV and mechanical ventilation systems to MVHR assessment, servicing and repairs, our qualified specialists deliver evidence-based solutions tailored to the needs of each property.

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Creating Healthier, Safer Homes Through Effective Ventilation

Modern homes are designed to be more energy efficient than ever before. While this helps reduce heat loss and energy costs, it can also trap moisture, pollutants, and stale air within the property. Without adequate ventilation, this can lead to condensation, mould growth, poor indoor air quality, and an unhealthy living environment.

At RTC, we provide professional domestic ventilation solutions that not only help prevent condensation and mould but also create healthier, safer homes for occupants. Our experienced team designs and installs systems that improve indoor air quality, control humidity levels, and ensure compliance with current Building Regulations.

Ventilation Is About More Than Preventing Mould

Many homeowners only consider ventilation when they start to see black mould appearing on walls, ceilings, or around windows. However, poor ventilation can affect far more than the appearance of a property.

Inadequate air movement can lead to:

  • Excess condensation and dampness
  • Mould and fungal growth
  • Unpleasant odours
  • Increased dust, allergens, and airborne pollutants
  • Poor indoor air quality
  • Potential health issues, particularly for children, the elderly, and those with respiratory conditions

A properly designed ventilation system continuously removes stale, moisture-laden air and replaces it with fresh, filtered air, helping to create a healthier and more comfortable living environment all year round.

Professional Ventilation Solutions from RTC

At RTC, we install, assess, maintain, and repair a wide range of domestic ventilation systems tailored to the specific needs of each property.

Our services include:

Positive Input Ventilation (PIV) Systems

PIV systems introduce fresh, filtered air into the home, gently diluting and displacing moisture-laden and stale air. They are highly effective in reducing condensation and mould problems while improving overall indoor air quality.

Mechanical Ventilation Systems

We install a variety of mechanical ventilation solutions designed to extract excess moisture and maintain healthy airflow throughout the property. These systems can be specified for individual rooms or whole-house applications depending on the building’s requirements.

MVHR Assessment, Testing and Repairs

Mechanical Ventilation with Heat Recovery (MVHR) systems play a vital role in many modern, energy-efficient homes. However, poorly commissioned, incorrectly balanced, or poorly maintained systems can significantly reduce performance and impact indoor air quality.

RTC can inspect, assess, test, diagnose, maintain, and repair existing MVHR systems to ensure they are operating efficiently and delivering the intended levels of ventilation and heat recovery. Whether you are experiencing performance issues, airflow concerns, compliance requirements, or occupant complaints, our team can provide expert support and practical solutions.

Qualified Ventilation Surveyors

Unlike many contractors who simply install equipment, RTC employs fully qualified CSDV (Certificated Specialist in Domestic Ventilation) surveyors who understand the complex relationship between ventilation, moisture movement, building fabric, energy efficiency, and occupant health.

Our surveyors carry out detailed assessments to identify the root causes of condensation, dampness, mould growth, and poor indoor air quality before recommending the most appropriate solution. This ensures that any ventilation measures are based on evidence and building science rather than a one-size-fits-all approach.

By combining qualified surveying expertise with practical installation experience, RTC delivers ventilation solutions that are effective, compliant, and designed to provide long-term benefits for both properties and their occupants.

Why Choose RTC?

  • Fully qualified CSDV ventilation surveyors
  • Specialists in dampness, mould and ventilation assessments
  • Installation of PIV, MVHR and mechanical ventilation systems
  • MVHR testing, assessment, maintenance and repair services
  • Solutions tailored to individual properties
  • Focus on long-term mould and condensation prevention
  • Improved indoor air quality and occupant wellbeing
  • Compliance with current Building Regulations
  • Professional survey, specification, installation and aftercare service

Arrange a Ventilation Assessment

If you are experiencing condensation, mould, poor indoor air quality, or are looking to ensure compliance with current ventilation standards, RTC can help.

Contact our team today to arrange a professional ventilation assessment and discover how the right ventilation solution can create a healthier, safer, and more comfortable home.

Ventilation Service & Maintenance Packages

A ventilation system can only perform effectively if it is properly maintained. Over time, filters become clogged, airflow rates can fall out of balance, components can deteriorate, and systems may no longer deliver the level of ventilation required to protect the property and its occupants.

To help homeowners, landlords, housing providers, and property managers maintain healthy indoor environments, RTC offers tailored ventilation service and maintenance packages designed to keep systems operating safely, efficiently, and in compliance with current standards.

Our service packages can include:

  • Routine ventilation inspections
  • Performance testing and airflow verification
  • Filter inspection, cleaning, and replacement
  • PIV system servicing
  • MVHR servicing, maintenance, and repairs
  • Fault diagnosis and corrective works
  • Compliance checks and reporting
  • Advice on system optimisation and energy efficiency
  • Ongoing planned preventative maintenance programmes

Regular servicing helps maximise system performance, prolong equipment life, reduce the risk of condensation and mould recurrence, and ensure occupants continue to benefit from good indoor air quality.

Whether you require a one-off inspection or a fully managed maintenance programme, RTC can provide a package tailored to your requirements.

Contact Us for More Information

If you would like to learn more about our ventilation service and maintenance packages, or discuss the requirements of your property portfolio, contact the RTC team today. We will be happy to explain the options available and recommend a solution that meets your operational, compliance, and budgetary needs.

Our experienced team of fully qualified CSDV surveyors and ventilation specialists can provide professional advice, assessments, servicing, repairs, and ongoing support to help keep your properties healthy, compliant, and protected for the long term.

For any queries, or to book a survey, please get in touch.

Our staff will work closely with you from survey stage, right through to the successful completion of the contract.

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4.9/5 Rating from 230 Reviews

Why Choose RTC?

1

Experienced & Reliable

Hundreds of properties attended every year

2

Established 35 Years

We have been in business since 1990

3

Skilled Experts

Expert Technicians and Surveyors

4

Long Term Guarantees

Our damp proofing is guaranteed to last

What our valued customers say...

Verified
High-Standard Finish That Went Above & Beyond

Fantastic job done, really appreciate the work done. They did more than I expected at a really high standard. Nothing negative I could possibly say so I would recommend to anyone requiring their services. Good job RTC!

Verified
Professional from Damp Report to Final Plaster

Delighted with the service. RTC installed a damp proof course and replastering at my house. The damp survey was professional, detailed and very clear on the work to be done with good accompanying explanations of the issues. The office is easy to contact, answering all my calls and returning them promptly if the person I needed to speak to wasn’t immediately available. The technicians who performed the work were professional and worked fast and hard. They explained clearly all the steps and left the house clean every day. I am really please with the final finish and overall result. They were not the cheapest quote or survey I had, but at all steps were the most professional. Highly recommended.

Verified
Transparent Pricing & Top-Notch Workmanship

From initial contact with the office, to the visit from the surveyor, the surveyors report which was very thorough as he actually went under the floors, the price for the work and the quality of the job itself was excellent. The surveyor Sam did an excellent job as was the repairs done by Dan and Karl. After the work was completed, I was contacted by the office to check that I was satisfied with work and the quality of the job, which I was. Professional all the way through with good customer service, made to feel I was important to their business. It’s an old adage but big enough to cope and small enough to care fits the bill. Would use again and would have no reservation about recommending them.

Verified
Condensation Cleared in Days with PIV System

I recently had a Positive Input Ventilation System fitted in my loft and was very happy with the results. Within just a couple of days the problem with condensation was clearing. Lawrence who fitted the system did a great job and was very clean and tidy also the ladies in the admin department were very pleasant and helpful.

Verified
Dillon’s Expertise Shines: Reliable, Neat, On-Time

The 2 men that turned up were very polite and the main man Dillon was good at his job got straight on with doing his work everything went as planned and when he had finished was left clean and tidy carpet replaced with new carpet grippers really happy with the work done

Verified
Damp Proofing Done Right—Clean, Quick & Reliable

Had RTC in to do damp proof work in dining room and hall way turned up on time everyday kept my property as clean as they could even thought this is a messy job before leaving everyday they made sure all work areas we’re hovered and swept the staff I had at my property were really nice friendly hard working lads they answered all my questions if I ever need them in the future they will be getting a call and can I finish by giving Jack a shout as he was with us though out the works and he is a credit to RTC

Verified
Protected Home, Perfect Finish—Excellent Result

Originally recommended by my surveyor after discovering damp in 5 rooms. All the RTC staff were friendly and did a great job in minimising the dust and mess with protected sheeting and flooring throughout the house. The final result is excellent and a big call out to Steve for helping with moving a very heavy radiator and giving me tips on cauking. Highly recommend if you want a fairly priced job by hghly skilled employees and not subcontractors.

Verified
Clear Communication & Impeccable Cleanup

From start to finish the company were very professional. Everything was explained to us. Despite the work being very messy, everything was cleaned up at the end of each day. The two lads who completed the work, Wes and George, were hard working, polite and answered my many questions without any problem. The work was done to a very high standard, and it exceeded my expectations. I would highly recommend RTC, I would not hesitate to use them again.

Verified
Respectful Team Treated Our Home Like Their Own

From initial contact, surveyor visit and 3 days on site undertaking the work we found RTC to be very professional in all aspects. The lads who undertook the work communicated well throughout the job and more importantly treated the property with respect, as if it was their own home. Would recommend RTC without hesitation or reservation.

Verified
Respectful Service & Impeccable Protection

I dont write reviews unless there necessary and these guys are, Dale fron RTC was absolutely brilliant very respectful in our home and with our furniture ensuring things were covered up the best he could amazing company.

Verified
Knowledgeable Pros Who Tidy Up After Themselves

From beginning to end the work was undertaken in a proffesional and efficient manner by skillful and knowledgable people. The workmen arrived when stated and left each day having tidied up and cleaned whereever possible.were. I have no hesitation in recommending RTC.

Verified
Outstanding Service by Sam, Stacey, Hayleigh & Mat

I had this company recommended to me and i am so glad they did everyone that ive dealt with from survey sam the girls in the office stacey and hayleigh to the workmen mat and the rest of workforce they did a great job and would use them again reliable tidy really pleased. Thanks again