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

Strachan mastic sealing

We carry out mastic sealing for building owners, managing agents and housing associations in Strachan and the surrounding area. Send photos or drawings for a fixed quote.

  • Occupiers reporting cold air round windows
  • Complaints coming in block by block
  • Cracked, hardened mastic round windows on a block
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m public liability

Mastic sealing across Strachan

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

General trades versus a specialist

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.

Mastic sealing in Strachan

Different joints need different sealants. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint. We will confirm the colours available for the specified product. If you’re dealing with failed external movement joints and the same joint failures repeated across a portfolio, we can help, on communal kitchens and washrooms, communal entrances and stairwells and window and door perimeters on blocks alike. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Strachan, that means joint design, primers and backing rod as standard.

Travel to smaller places like Strachan is planned so several buildings can be done on one trip. Send addresses and photographs for a quote covering the batch.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we spell out the cover before we begin.

Where
Strachan (AB31)
Wider area
Aberdeenshire
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and each bead is tooled to a neat concave finish. Where we can, we combine work around Strachan with other jobs nearby, to make the most of each trip. Let us know if your dates have any give.

  1. First comes a look at the joints and, for older buildings, the asbestos records.
  2. The products and programme are set out in a fixed quote.
  3. Failed mastic is removed completely.
  4. The joints are prepared and resealed with the right product.
  5. Buildings are completed in turn.

What we need from you

  • Clear stock, furniture or equipment away from the joints
  • Warn occupants and staff about the work
  • Explain the parking and delivery arrangements

Quotes

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.

Get a price

Advice

Maintenance after handover

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Make mastic part of routine maintenance checks
  • Look at the sunniest and most exposed elevations first
  • Ask residents or tenants to report leaks and draughts early
  • Group repairs into a planned programme

Where a paintable product was specified, it can be painted after curing. Silicone normally can’t be painted, so keep decorators off it unless told otherwise.

Mastic fails gradually, then all at once in a wet spell. Resealing when cracking first shows avoids water damage and saves internal repairs.

For owners and agents in Strachan

Being in the east of Scotland, Strachan gets less rain than the west coast. External mastic still needs a dry joint and the right temperature, and winter mornings can be frosty. We plan block programmes with some give for it

Around Strachan, a planned programme renews failed mastic across a building or estate in one go. If you’re responsible for a building such as Strachan Parish Church And Churchyard, frame and door mastic needs the same attention as any other property.

Strachan is about 18 miles south-west of Aberdeen, in Aberdeenshire. We cover commercial sites throughout Strachan. 179 places across Aberdeenshire fall within our area, including Strachan. Aberdeen is covered too, around 18 miles from Strachan.

Work on mastic joints is covered throughout AB31, for business premises of every kind. We cover commercial and managed buildings on Bowbutts Brae and Feugh View. If your building is just outside Strachan, we cover Banchory (3 miles north-east), Inchmarlo (3 miles north), Crossroads (5 miles east), Crathes (5 miles north-east) and Potarch (5 miles north-west). Nearby towns on our patch include Westhill (13 miles north-east), Stonehaven (12 miles east), Portlethen (15 miles east), Kemnay (15 miles north), Laurencekirk (13 miles south) and Aboyne (10 miles west).

Local landmarks in Strachan

A little further out are Glen O'Dee Hospital (2.8 miles north) and Castlehill of Strachan (1.2 miles west). The countryside around Strachan includes Scolty Hill and Black Loch.

Map of Strachan © OpenStreetMap contributors

Work for main contractors and building owners

When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end.

As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.

Questions about Strachan

Can one quote cover a number of our buildings near Strachan?

Yes. Portfolio-wide programmes are a regular request. Residents are given notice through you, and the work moves building by building.

Which documents can you supply for work in Strachan?

RAMS, insurance certificate, CSCS details: list what the site needs and we will confirm it with the quote. Our applicators are CSCS-carded, and we carry £5m public liability insurance.

Do you cover Strachan?

Yes. Strachan is in our area. To discuss a job, ring 01277 525 020 or use the quote form.

What if the old mastic contains asbestos?

We don’t remove asbestos-containing materials. Anything suspect is tested before we carry on, and the duty to manage asbestos sits with the dutyholder.

How long before the joints can be used?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Are you CHAS accredited?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.

What we can’t put right

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:

  • Leaks through the frame itself rather than the perimeter
  • Roof leaks, gutters or failed flashings that aren’t sealant joints
  • Substrate edges that need repairing first

If you are not sure, just call 01277 525 020 or use the quote form and we will give you a straight answer before you book.

What we seal

  • Balcony and threshold joints
  • Communal entrances and stairwells
  • Communal kitchens and washrooms
  • Shopfronts below residential blocks
  • Window and door perimeters on blocks
  • External wall and movement joints

How the quote is worked out

What shapes the price:

  • Any access equipment needed
  • Removal of failed or old sealant
  • The product specified
  • Site requirements such as inductions and permits

The price depends on how many linear metres there are, how much old material needs removing and the access. Call for a quote when you are ready.

What we need to price the job

Whether it’s one area or a whole building, the same details help:

  • Drawings or a marked-up plan, if available
  • The asbestos register, for older buildings
  • The type of building and who uses it
  • The product your specification calls for

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, speak to us on 01277 525 020 or send details through our quote form.

Accreditations

Trusted. Accredited. Insured.