Construction and new-build mastic in Duns, Scottish Borders
Mastic packages for new-build and refurbishment projects in Duns. CHAS accredited and fully insured, with a 12-month guarantee.
- Frame gaps too wide for sealant alone
- Inconsistent sealant finishes from plot to plot
- Existing joints on a refurb that need cutting out and resealing
Construction mastic across Duns
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
How we handle construction mastic in Duns
Mastic Doctor has been a subcontractor on construction projects for over 20 years. We price from drawings and the specification, agree the sequence with the site team and seal as areas are released. To price a package in Duns, send drawings and the specification through our quote form. We work on sanitary and kitchen joints, floor and skirting junctions and internal decorators’ caulk, and the failures we’re asked to look at most are sealant knocked or painted over by other trades and cracks opening in caulked internal joints. Most enquiries from Duns start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Sites near smaller places like Duns 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.
We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.
- Location
- Duns (TD11)
- Region
- Scottish Borders
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
How the job changes by surface
External facade and movement joints
Movement joints in the facade are sealed with a product suited to the expected movement. Depth is controlled with backing rod so the bead bonds to two sides only.
Kitchens and utility areas
Worktop upstands, sinks and splashbacks are sealed once the kitchen is fitted. The sealant is a kitchen-grade product and hygienic or food-safe grades wherever food contact is possible.
Signs you need construction mastic in Duns
A joint without backing rod or bond-breaker often fails early. Bonded to the base of the joint and both sides, sealant can’t stretch evenly.
It’s worth sending us details if you spot any of the following:
- Oversized or tapered gaps around new frames
- A mastic package split between trades with no clear owner
- Sanitary sealant damaged by following trades
- Mastic snags holding up handover
For contractors at a school such as Berwickshire High School, sealing has to be finished before term starts.
Before you book anyone
- Will failed sealant be removed rather than covered?
- Whether primer will be used where the manufacturer specifies it
- Which product they’ll use, and why it suits the joint
- Their pre-qualification and accreditations
Building and refurbishing in Duns
Several hotels sit less than 2 miles from Duns. Hotel extensions and refits typically have to fit around bookings, so mastic dates are tight. Projects in Duns follow Scotland’s building regulations, with the local authority acting as verifier. We seal to the specification that sits behind the warrant.
Work at a hotel such as Barniken Hotel, under half a mile to the east of Duns, tends to be programmed around bookings, mastic included. Hospital estates such as Knoll Community Hospital, under half a mile south of Duns, 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.
Duns is in the Scottish Borders. If you’re looking for construction mastic in Duns, we can help. Our the Scottish Borders coverage takes in 91 places, from busy centres to rural villages. For work in that direction, see our Edinburgh page, about 35 miles away.
Work on mastic packages is covered throughout TD11, for business premises of every kind. Streets here include Market Square, Station Road and Murray Crescent, and sites on any of them can send details for a fixed quote. Access to Duns is via the A6105 and A6112. Just outside Duns, we also work in Clockmill (1 mile west), Gavinton (1 mile south-west), Preston (2 miles north), Swinton (5 miles south-east) and Chirnside (5 miles east). As one of the bigger centres in the Scottish Borders, Duns has a broad mix of commercial, public and industrial buildings.
Around Duns
Recent enquiries here include premises near The Royal Bar and the streets around them. Well-known places in the area include Knoll Hospital (less than half a mile south) and Jim Clark Motorsport Museum (under half a mile west). Open spaces near Duns include Duns Law and Duns Castle nature reserve.
FAQs: Duns
Would you work within a site like Knoll Community Hospital?
Yes, healthcare and care buildings are part of our work. We follow the site’s permits, sign-in and infection-control procedures in every area.
Will you take on work at estates like Duns Industrial Estate, close to Duns?
Yes. Our area takes in Duns and its surroundings, with estates and business parks such as Duns Industrial Estate included. To start, just give us a call on 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.
How much does the work cost?
There isn’t a price list, as every site differs. With photographs or drawings, we can give you a fixed quote.
Will you stick to the specified products?
We use the product the specification names. If we think an alternative would suit better, we put it to you first.
How do you deal with asbestos in old sealant?
The duty to manage asbestos sits with the building’s dutyholder, so we’ll ask for the register before work on an older building. Work pauses if suspect material is found, until it has been tested.
What hours do you work?
We are in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.
Can you seal external joints in wet or cold weather?
Outside, the joint has to be dry and the temperature within the product’s limits. Damp, frost or condensation on frames can stop work, so internal areas are often done on those days.
Also in Duns
What sets the cost
We price every job individually. The things that drive the figure:
- Access and working height
- The product specified
- Whether the work must be split into stages
- Distance, for remote addresses
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
Before you send an enquiry
Whether it’s one area or a whole building, these details speed things up:
- The asbestos register, for older buildings
- A wide shot and a close-up of the area
- Anything awkward about access or site hours
- Rough lengths or quantities, or drawings if you have them
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To ask for one, ring 01277 525 020 or email us.
On site: what to expect
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Where we can, we combine work around Duns with other jobs nearby. Let us know if your dates have any give.
- First we look at the scope on site or from drawings.
- You receive a fixed quote covering scope, products and sequence.
- Site paperwork is confirmed and our CSCS-carded applicators are inducted.
- Sealing follows the programme as areas are released.
- Problems we find, such as oversized gaps, are raised right away.
- Final snagging is completed and the 12-month guarantee applies.
What we need from you
- Agree which areas must stay open
- Arrange parking or a loading space
- Send your site hours and access windows
Getting a fixed quote
To get a fixed quote, ring 01277 525 020 or email us, telling us the site location and the nature of the job. Our quote form is another easy route.
Advice
Looking after the joints
After handover, these steps help:
- Share drawings and the specification as soon as possible
- Brief the final clean team to avoid blades near sealant
- Allow flexibility for external sealing in damp or cold weather
- Bring the mastic contractor in after the last trades are through
If a joint is damaged after sealing, flag it early. We can return to clear snags before handover as agreed in the quote.
Snag items left to the last week put handover at risk. Clearing snags area by area spreads the work out, and avoids a rush.
Should maintenance staff do it?
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.
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.