EPC · Retrofit · Air Tightness

Your Home Is Leaking Money. Let's Find Out Where.

Every draught, cold room and poor rating costs you, month after month. We measure exactly how your property performs, then tell you plainly what's worth fixing first.

  • Qualified DEA
  • ATTMA Level 1 Trained
  • UK-Wide Retrofit
Qualified DEADomestic Energy Assessor
ATTMA Level 1Trained Air Tester
Retrofit AssessorPAS 2035 Projects
Level 3 HeritageTraditional & Listed
Fully InsuredProfessional Service
The Problem

You Can Feel It. You Just Can't See It.

Heat loss is invisible. Without proper measurement, you're left paying the price and guessing at the cure.

Draughts You Can't Track Down

Cold air creeping in from somewhere, and the heating running flat out just to keep up.

Bills That Never Come Down

You've done the obvious things, yet every winter costs more than the last.

A Rating Holding You Back

A poor EPC can put buyers off, complicate letting and make a property harder to move.

Upgrades Without a Plan

Insulation, windows, a heat pump? Without the facts, it's an expensive guess.

Every one of these starts with the same thing: proper, professional evidence.

See How We Help
Services

Clear Answers. Not Guesswork.

Six services with one goal: making your property warmer, cheaper to run and worth more. Not sure where to start? Compare them below.

Red brick house with white windows
Shropshire & W. Midlands

Domestic EPCs

Your Energy Performance Certificate is the first thing buyers and tenants look at. Get it done properly, by someone who looks at your home in detail.

  • Selling or Letting
  • Landlord Compliance
  • Simple Instructions for Agents
Book an EPC
Loft space with insulation
UK-Wide

Retrofit Assessments

Before you spend thousands on upgrades, know exactly what your home needs. A whole-house assessment that turns guesswork into a clear, compliant plan.

  • Fabric, Ventilation & Heating Survey
  • Built for PAS 2035 Projects
  • Safe for Traditional Construction
Request an Assessment
Warm living room with fireplace
ATTMA Level 1 Trained

Air Tightness Testing

Measure exactly how much air your property leaks with the fast, low-pressure Pulse method, and prove your improvements actually worked.

  • Pre & Post Retrofit Testing
  • Fast, Quiet Pulse Method
  • Hard Numbers, Not Opinions
Explore Air Testing
Reviewing plans on a tablet
Technical

Energy Modelling

See how your property performs today, where the biggest losses are, and which upgrades give you the most for your money, before you commit a penny.

  • Upgrade Options Compared
  • Spend Where It Counts
Discuss Your Project
Two storey house exterior
Marketing

Home & Drone Photography

First impressions sell homes. Bright, professional interiors and striking aerial shots that make listings stand out and get viewings booked.

  • Interior & Exterior
  • Aerial Views of Roof, Plot & Setting
Book a Shoot
Brick building with white door
Partner

Electrical & Building Works

Electrical inspection and testing, plus building works from concept to completion, through our trusted partner MiE Consultants.

Find Out More
Air Tightness Testing

Find Every Leak. Prove Every Improvement.

Insulation only works if the warm air stays inside. A quick Pulse air test measures exactly how leaky your property is, and proves whether your improvements worked.

How It Works

A compact unit inside your home releases a short pulse of air. Sensors measure how quickly the pressure escapes, giving one clear number: your air permeability. Lower is better. No fan in the doorway, no mess, minimal disruption.

  • Lower Energy Bills – stop paying to heat air that escapes.
  • Warmer Rooms – fewer draughts and cold spots.
  • Proof Your Upgrades Worked – test before and after works.
  • Healthier Homes – get ventilation right and reduce damp risk.
Cutaway of a house showing common air leakage paths PULSE UNIT 1234567
Warm Air EscapingCold Air Getting In
  1. Loft Hatch
  2. Recessed Downlights
  3. Window Frames
  4. Doors & Letterboxes
  5. Floor Gaps & Skirting
  6. Service Pipes & Cables
  7. Open Chimneys
Heritage & Listed Buildings

Older Homes Need an Assessor Who Understands Them.

Level 3 knowledge of traditional, heritage and listed buildings. Solid walls, lime mortars and breathable construction are assessed for what they are, never treated like a modern build.

Talk About Your Property
Landlords & Agents

Protect Your Rental Income

Energy standards for rented homes keep getting tougher. Know exactly where your properties stand, and what it'll take to stay ahead, before it costs you.

  • EPC Requirements – What you need, and when.
  • Improvement Plans – Realistic, cost-aware upgrades for your rating.
  • Hassle-Free Access – We work around tenants and agents.
  • Exemptions – Understand when they may need to be considered.
Row of brick houses

Booking Is Simple

From first call to finished report, with no chasing.

  1. Get in TouchCall, email or use the form with the address and the service you need.
  2. Pick a TimeWe agree a slot that suits you, your tenant or your agent.
  3. Onsite VisitA thorough survey that respects how your property is built.
  4. Clear ResultsYour certificate or report, plus straight-talking advice on what to do next.
Speak to an Assessor
Partner Services

Electrical Safety Testing & Building Works

Through our trusted partner MiE Consultants, a family-run consultancy based in Telford, you can take a property from assessment right through to finished works.

  • Electrical Safety TestingElectrical inspection and testing for landlords, homeowners and property professionals.
  • Building WorksFrom first concept through to the finished job.
  • Project Delivery SupportHelp keeping your project organised and on track.

Services provided by MiE Consultants

Which Service?

Find the Right Service in Seconds

Still unsure? Call and we'll tell you straight. No upselling.

ServiceWhat It Gives YouBest For
EPCYour official energy rating, ready for sale or let.Homeowners, landlords and agents.
Retrofit AssessmentA complete picture of the property and a compliant plan for improvement works.Anyone planning upgrades, anywhere in the UK.
Air Tightness TestA measured air leakage figure, and proof that works made a difference.Retrofit projects, draughty homes, self-builds and extensions.
Energy ModellingUpgrade options compared, so you spend where it counts.Clients wanting deeper insight before deciding.
Photography & DroneProfessional imagery that makes a property stand out.Sellers, agents and property professionals.
Electrical & BuildingElectrical inspection and testing, plus building works from concept to completion, via MiE Consultants.Landlords, owners and anyone planning works.
Areas Covered

Local Where It Matters. Nationwide for Retrofit.

Every service across Shropshire and the West Midlands, including the towns and villages in between, plus Retrofit Assessments anywhere in the UK.

Shropshire

All Services
  • Shrewsbury
  • Telford
  • Oswestry
  • Bridgnorth

West Midlands

All Services
  • Birmingham
  • Wolverhampton
  • Dudley
  • Walsall
  • Sandwell
  • Solihull

United Kingdom

UK-Wide Retrofit Assessments

Retrofit Assessments for projects anywhere in the UK, for homeowners, housing providers and installers alike. Air testing for retrofit projects further afield by arrangement.

  • England
  • Scotland
  • Wales
  • Northern Ireland
Grants & Support

Could You Be Missing Out on Funding?

Energy efficiency support is available to many households. Check what you could be eligible for, then let us provide the assessment that goes with it.

Book or Request a Quote

Every Month You Wait Is Another Month of Wasted Heat.

Tell us about your property and we'll come back to you quickly. Prefer to talk? Call for the fastest response.

Request a Quote

Opens your email app with the details filled in.
FAQ

Frequently Asked Questions

Can't find your answer? Call 07540 061328.

How Do I Book an EPC, Retrofit Assessment or Air Test?

Call 07540 061328 or email dave@dess.ltd with the property address, postcode, the service you need and your preferred timing. You can also use the booking form above.

What Areas Do You Cover?

Retrofit Assessments are available UK-wide. EPCs, Air Tightness Testing, Energy Modelling and Photography are available across Shropshire (including Shrewsbury, Telford, Oswestry and Bridgnorth) and the West Midlands (including Birmingham, Wolverhampton, Dudley, Walsall, Sandwell and Solihull). Air testing for retrofit projects further afield is available by arrangement.

How Do I Know Which Service I Need?

Selling or letting usually needs an EPC. Planning energy improvement works calls for a Retrofit Assessment. If you want to know how draughty a property really is, or prove works have made a difference, you need an Air Tightness Test. Unsure? Call and we'll tell you straight.

What Is an Air Tightness Test?

We use the Pulse method. A compact unit inside the property releases a short pulse of air, and sensors measure how quickly the pressure escapes. This gives your air permeability in m³/(h·m²) at 4 Pa. Lower is better.

Are You Qualified to Carry Out Air Tightness Testing?

Yes. Testing is carried out by an ATTMA Level 1 trained tester, the industry training standard for testing dwellings.

How Do I Prepare for an Air Test?

We send a simple preparation checklist before the visit. Typically, external windows and doors are closed and internal doors are propped open so the whole home is tested as one space.

Can Landlords and Letting Agents Book?

Yes. Landlords, letting agents and housing providers can book EPCs and get clear guidance on compliance, improvement options and when exemptions may need to be considered.

Do You Assess Older, Heritage or Listed Buildings?

Yes. We hold Level 3 knowledge of traditional, heritage and listed buildings, so older properties are assessed with their construction in mind and never treated like a modern build.

Is Electrical Safety Testing Available?

Yes, through our partner MiE Consultants, a family-run consultancy based in Telford. As well as electrical safety testing, MiE can deliver building works from concept to completion. Visit mieconsultants.co.uk for details.

Call Now Get a Quote