THIAS - The Home Improvement Advisory Service

roofing work harrogate

Major roofing and conversion project
in Harrogate

Established in 1993, and based in Yorkshire, THIAS (The Home Improvement Advisory Service) - is a specialist property care, retrofit insulation and project management service. We have many years of hands on experience and have become a respected authority within the home improvement and property renovation sector.

We specialise in ECO-renovation of older homes and green retro-fit upgrades.

Our service is based on establishing long-term relationships with our customers.

We aim to:

  • Be a trusted and reputable service for homeowners to use - we only employ reputable contractors and tradesmen as part of our project team
  • Give reliable, genuine advice and up-to-date information to our customers
  • Ensure all completed work and projects comply with current building standards and up-to-date regulations

What we do

We provide expert help and advice to homeowners who want to renovate, extend or improve their homes - and increasingly make their homes more energy efficient with 'green' upgrades and renewable energy systems.

Our project management service can help any homeowner establish the extent of work required - and manage a team of contractors for any size project. We can deliver a stress free project and at a competitive price.

  • We share our technical knowledge and ensure the job specification is right for each customer
  • We know our qualified contractors and have satisfied ourselves that they are able to work to the high standards that we demand
  • Our team are experienced and qualified to give advice, with on-going training
  • Depending on the project type, we are directly involved in the specification and management of work from concept to completion
  • We are based in Yorkshire and operate throughout the region

Our Philosophy

The Home Improvement Advisory Service operates a 'Clients for Life' policy. We understand that a good job at a fair price makes for a very satisfied customer. The continued success of our service relies on repeat business from existing customers and referrals to new customers. Recommendations and work from existing customers now accounts for over 80% of our work.

We always seek customer feedback - it's the way we know how well we're doing. Our policy is to get to know our customers directly, and ask them how satisfied they were with our service.

We provide home improvement and project management services across Yorkshire

Thias home improvements yorkshire map

Can you help?

We are always looking for quality contractors and trades-people:

Have you had work carried out on your home?

Have you received outstanding service which was above and beyond your expectations?

Help us build our network of contractors and tradesmen.

Please tell us about your experiences, and we can share that experience and help other homeowners find the best local contractors.


Simply call us on 01937 573367 or complete the form below:

  • Expertise & Advice

    We help homeowners across Yorkshire improve their homes.

  • Local Independent Service

    Surveyors from THIAS independently survey your home.

  • Customer Service

    Our contractors are vetted to ensure high quality and customer care standards.

  • Full Support Service

    Friendly help and advice from experienced professionals.

  • 01937 573367

    Call now for a FREE consultation