The Mastic Doctor team standing beside their branded vans outside an office building
Midlothian · Scotland

Dewartown facade sealing

Sealant work in Dewartown for main contractors, managing agents and facilities managers: facade joint and window perimeter sealing on commercial buildings, with a fixed quote first.

  • Perimeter joints where frames meet the structure
  • Gaps between rainscreen or cladding panels
  • Sealant pulling away from frames or panels
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
£5m public liability

Facade sealing for businesses in Dewartown

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Dewartown: questions and answers

Is Dewartown too small for you to travel to?

No. Places such as Dewartown are covered as much as the big towns. Our area covers all of Scotland, cities, towns and islands alike. Where we can, we group nearby jobs to make the most of each trip.

Is McSence Business Park, near Dewartown, within your area?

Yes. We cover Dewartown and the area around it, including industrial estates, business parks and retail parks such as McSence Business Park. Photos and a short description are enough for a first look.

How do we ask for a quote?

There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.

What type of sealant goes on window perimeters?

Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Some joints call for hybrid, PU or polysulphide instead.

Can you find out why a window is leaking?

Yes. We check the sealant joints and report what we find before quoting. If the water seems to come from a roof, sill or the glazing unit instead, we say so.

What site paperwork can you supply?

Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.

Will your applicators have CSCS cards?

Yes. We use CSCS-carded applicators, which many sites require.

Facade sealing for commercial buildings in Dewartown

Some clients need every window on a block resealed; others need a few leaking frames sorted. Either way, the method is the same: cut out, clean, back, prime where needed and seal. Each job carries our 12-month guarantee. If you have water coming in around window frames and cold air coming in at window perimeters, we can help. Looking for mastic applicators who cover Dewartown? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.

Sites near smaller places like Dewartown can mean longer travel, so the mastic is planned with as few trips as the job allows. Send drawings, photos and the programme so everything needed arrives on the first day.

Work we carry out in Midlothian comes with a 12-month guarantee. If an installation problem shows up, speak to us on 01277 525 020 or email a schedule or drawings and we will arrange a return visit.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Dewartown (EH23)
Region
Midlothian
Cover
A 12-month guarantee
Quotes
Fixed quote, scope in writing
Phone
01277 525 020
Updated
3 November 2026

How a job runs

Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. Travel to smaller Scottish places like Dewartown is planned so the job is finished in one visit where possible, which is why we ask for photographs and a full list first. External joints need a dry spell as well.

  1. Photos, drawings or a visit tell us about the joints and the access.
  2. We confirm the joint type, movement and the specified product.
  3. Failed beads are removed in full and both faces cleaned back.
  4. Primer is applied where the maker specifies it.
  5. Rod goes in to fix the depth, then the joint is sealed and tooled.
  6. The finished joints are checked with you.

What we need from you

  • For older buildings, check the asbestos register before work
  • Share your working hours and any access restrictions
  • Let us know about inductions and permits

Quotes

Let us know the site, the scope and your timescale, and we will put a fixed quote together. The easiest way is to give us a call on 01277 525 020 or email drawings and photos.

Get a quick quote

Advice

Leave it or put it right?

Scaffold or access already on site makes resealing much simpler. Combine it with planned external works and you only arrange access once, which is often the biggest saving. In Scotland, wind-driven rain finds a failed joint quickly, and for a smaller place like Dewartown, a repair visit takes planning, so it’s better to act early.

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

Why clients in Dewartown choose us

  • 12 months’ guarantee on every job
  • Work to your specification and the manufacturer’s guidance
  • One number for every site we cover
  • Health and safety: CHAS accredited

Take a look at what affects the cost or our accreditations and insurance.

What sets the cost

Your fixed quote is built from the real scope. It allows for:

  • Backing rod, priming and other preparation
  • Induction, permit and paperwork requirements
  • Travel to remote or island sites
  • Specialist products, such as fire-rated or hygienic sealants

The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

Details that help us quote

For an accurate fixed quote, we need a clear picture of the site. Useful things to include:

  • Whether an asbestos survey exists
  • Drawings or a marked-up plan, if available
  • The product your specification calls for
  • The postcode of the building

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, call the office on 01277 525 020 or email drawings and photos.

Aftercare for building managers

Problems stay small when the joints are checked regularly. Specifically:

  • Combine resealing with other works that need access
  • Report water ingress at frames as soon as it shows
  • Record the product and colour used on each elevation
  • Keep pressure washers away from fresh sealant

Hold back any cleaning crew until the joints have had their stated cure time. Keep high-pressure jets and strong chemicals away from new sealant and tell your cleaning contractor.

Planned resealing is cheaper than reacting to leaks. Regular checks let you renew joints before water gets in instead of after the damage.

What we can’t put right

Not every problem is a sealant problem, and we are upfront when that’s the case. It won’t fix:

  • Specialist high-level access methods
  • Movement beyond what any sealant can handle
  • Installing or repairing glazing systems

If you are not sure, just ring 01277 525 020 or use the quote form and we’ll give you a straight answer.

Joints and surfaces we work on

  • Perimeter joints where frames meet the structure
  • Shopfront frames
  • Stone and brick facade joints
  • Cladding panel joints
  • Window and door perimeters
  • Coping and flashing joints

Building and refurbishing in Dewartown

The east of Scotland, where Dewartown is, gets less rain than the west. Frost and condensation on frames and panels can still hold up external mastic on winter mornings. External mastic is planned with the site manager for workable conditions. Building work in Dewartown comes under the Building (Scotland) Regulations 2004 and their technical handbooks, with warrants from the local authority verifier. The mastic follows the specification that goes with the warrant.

Units on estates such as McSence Business Park, 1.8 miles west of Dewartown, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. For contractors at a school such as Newbattle Community High School, sealing has to be finished before term starts.

Dewartown is about 3 miles south-east of Dalkeith, in Midlothian. Dewartown sits inside our coverage and the rest of Midlothian, with the same fixed quotes and 12-month guarantee as everywhere else. Across Midlothian, 34 places are covered, Dewartown among them. Sites around Edinburgh have their own page, roughly 10 miles from Dewartown.

Business premises anywhere in EH23 are within our area. If your building is just outside Dewartown, we cover Edgehead (1 mile north-west), Pathhead (1 mile east), D'Arcy (1 mile west), Mayfield (2 miles west) and Easthouses (2 miles north-west). Bigger towns within reach include Bonnyrigg (4 miles west), Dalkeith (3 miles north-west), Penicuik (9 miles west), Loanhead (6 miles west), Gorebridge (3 miles south-west) and Newtongrange (3 miles west).

Local landmarks in Dewartown

The nearest railway station is Gorebridge station, roughly 2.7 miles south-west. Nearby you’ll also find Midlothian Community Hospital (3.8 miles west) and Oxenfoord Castle (1.1 miles north-east).

Map of Dewartown © OpenStreetMap contributors

Common problems we fix in Dewartown

Most facade joints fail through age and weathering. The bead hardens, chalks on the surface and loses the flexibility to follow the joint, then it splits or peels.

Any of the following is a good reason to get the joints checked over:

  • Hard, chalky sealant that no longer flexes
  • Discoloured or dirty facade joints
  • Cladding panel joints that have opened up
  • Weathered joints at frame-to-structure perimeters

With historic properties like Melville Castle (4.6 miles west of Dewartown) in the area, refurbishment work often meets old masonry that needs compatible sealants.

What to look for in a quote

  • Their plan for phasing and protecting the area
  • Their public liability cover
  • How long is the guarantee, and what does it include?
  • Are they CHAS accredited or on Constructionline?

Choosing a commercial sealant contractor

Accreditations

Trusted. Accredited. Insured.