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

Longside construction mastic

Mastic packages for new-build and refurbishment projects across Longside, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Internal caulk splitting as the building dries out
  • External joints sealed in damp or cold conditions that are now failing
  • Oversized or tapered gaps around new frames
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
Constructionline member
Fully insured: £5m PL

Construction mastic across Longside

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Different surfaces, different methods

Fire-rated sealant where specified

Not every penetration suits a sealant. Other products are used for some services and gaps. Tell us what records you need and we’ll confirm with the quote.

Bathrooms, en suites and washrooms

Sanitary joints around baths, showers, basins and WCs need anti-mould sanitary silicone. Each joint is prepared, sealed and finished with a neat tooled line.

Construction mastic for commercial buildings in Longside

A typical mastic package covers more than window perimeters: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. Splitting those between trades often leaves gaps in responsibility. Most enquiries involve cracks opening in caulked internal joints and external joints sealed in damp or cold conditions that are now failing, across brick and block movement joints, cladding and panel joints and window and door perimeters. Whoever orders the work in Longside, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.

For a site around Longside, we plan the mastic in as few trips as the programme allows. Send drawings, photographs and the programme so everything needed arrives on the first day.

Every job we finish is backed by a 12-month workmanship guarantee. If our installation lets you down in that time, we return and fix it.

Location
Longside (AB42)
Region
Aberdeenshire
Guarantee
12 months on every job
Price
A fixed quote before we start
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

How a job runs

When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work typically takes as long as the agreed sequence needs, which comes down to joint lengths, access and handover dates. For a building near Longside, directions, keys and a contact on the day are worth sorting early. We’ll confirm the plan with the fixed quote.

  1. First we take quantities off the drawings and read through the specification.
  2. A fixed quote sets out the scope, the products and the sequence.
  3. You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
  4. We seal each plot or floor as it’s released to us.
  5. Each joint is prepared, backed to depth and sealed in the product the specification names.
  6. Snags are cleared before handover and completed areas carry our 12-month guarantee.

Getting the site ready

  • Send any specification or drawings in advance
  • Explain the parking and delivery arrangements
  • Send your site hours and access windows

Get a fixed quote

For a fixed quote, call 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. Our quote form is another easy route.

Get a quick quote

Read more

Do you need construction mastic in Longside?

Value-engineered products sometimes end up in the wrong joints. A general-purpose silicone on a facade or a caulk in a wet area won’t perform like the specified product. We stick to the specified product, or put any alternative to you first.

Most enquiries start with something like this:

  • Frame gaps too wide for sealant alone
  • Bath and shower joints scraped during the final clean
  • Frame perimeters left unsealed or poorly sealed
  • Old sealant on a refurbishment that needs stripping before new work

Hospital estates such as Ugie Hospital, 5.6 miles to the east of Longside, tend to grow and change in phases, often next to occupied wards, so facade and perimeter sealing has to fit the estates team’s plan.

Comparing quotes

  • Whether primer will be used where the manufacturer specifies it
  • Their public liability cover
  • The terms of the workmanship guarantee
  • Their pre-qualification and accreditations

Choosing a commercial sealant contractor

Looking after the joints

After handover, these steps help:

  • Stick to the specified sealant rather than a generic substitute
  • Get the mastic subcontractor involved early in the programme
  • Allow flexibility for external sealing in damp or cold weather
  • Flag uneven or tapered frame gaps early

Brief the sparkle clean so they don’t scrape the new joints. Blades and abrasive pads are the commonest cause of damage at the final clean, so stick to soft cloths and gentle cleaners near sealant.

A missed perimeter seal on one window can wet the reveal and the plaster inside. That normally means redoing finishes in a completed area, and a delay to handover. A check of every frame before decorators start is worth the time.

Why it’s worth doing now in Longside

On a refurbishment, there’s a choice between resealing existing frames and replacing them. If the frame is in good order, cutting out and resealing the perimeter can be all it needs, which is a much smaller cost. If the frame is life-expired, we will tell you. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, giving water time to get in. Resealing early avoids that.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.

Why us?

  • Work to your specification and the manufacturer’s guidance
  • Colour agreed before work starts
  • Colours chosen to suit frames, cladding or finishes where possible
  • Constructionline member

Read our cost guide and how we’re accredited.

New build and refits around Longside

Longside is on Scotland’s drier eastern side. Winter mornings can still bring frost and condensation on steel and glass. External dates keep a little give. Scotland has its own building regulations, and in Longside warrants come from the local authority verifier. We seal to the specification that sits behind the warrant.

For contractors refurbishing units at places like Thunderton Industrial Estate, 2.3 miles to the east of Longside, the mastic covers cladding panels, roller-door and window perimeters.

Longside is about 5 miles west of Peterhead, in Aberdeenshire. Businesses, contractors and managing agents in Longside can call on us for mastic packages. Longside is one of 179 places we cover in Aberdeenshire. There’s a separate page for Aberdeen, about 26 miles away.

Anyone looking for construction mastic in AB42 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Market Hill, Main Street and Station Road or close by, send details and we will quote for mastic packages. Just outside Longside, we also work in Mintlaw (2 miles west), Rora (3 miles north-east), Downiehills (3 miles east), Old Deer (4 miles west) and Fetterangus (4 miles north-west). A short drive away, we cover Peterhead (5 miles east), Fraserburgh (12 miles north), Ellon (11 miles south-west), Roanheads (6 miles east), Clerkhill (5 miles east) and Port Henry (6 miles east).

Near you in Longside

A little further out are Inverugie Castle (4.2 miles east) and Carnegie Inverurie Museum (1.9 miles south-west). Open spaces near Longside include Hill of Aldie and Pitfour Lake.

Map of Longside © OpenStreetMap contributors

Doing it in-house

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.

Common questions from Longside clients

Is Thunderton Industrial Estate, near Longside, within your area?

Yes. Our area takes in Longside and its surroundings, with estates and business parks such as Thunderton Industrial Estate included. Photos and a short description are enough for a first look.

Is a hospital such as Ugie Hospital somewhere you can work?

Yes, provided the work is planned with the site’s estates team. Work is phased so departments keep running, under the site’s own rules.

How soon can the area be used again?

We will confirm how long the chosen product needs to cure.

What about RAMS and site documents?

Requirements differ from site to site, so tell us what you need and we’ll confirm it when we quote.

What accreditations do you hold?

CHAS and Constructionline are both in place, and our applicators hold CSCS cards. We’re fully insured for public liability.

Can you work while the building is occupied?

In most cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.

Can fire-rated sealing at service penetrations be included?

We install fire-rated sealant where it is the specified product. We’ll flag if the detail needs a different product.

Accreditations

Trusted. Accredited. Insured.