Fire stopping in Clestrain
Commercial sealant work in Clestrain for contractors, FMs and building owners: fire-rated and intumescent sealing of service penetrations and linear gaps, with a fixed quote first.
- Fire stopping installed outside its tested range
- Fire sealant pulled out of the opening
- Fire seals cut back for extra cables and never reinstated
Fire stopping for Clestrain sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Fire stopping in Clestrain
Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. We don’t hold a third-party fire-stopping installer certificate. We install the specified fire-rated sealant to its tested detail, and our workmanship carries a 12-month guarantee. We work on pipe penetrations, service gaps in risers and cable penetrations, and the failures we’re asked to look at most are unsealed penetrations discovered above suspended ceilings and service penetrations left open after M&E works. Searching for sealant specialists in Clestrain? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
Around smaller places such as Clestrain, compartment walls and floors tend to be in schools, hotels, care homes and community buildings. Where services pass through, specified fire-rated sealant is installed following the manufacturer’s guidance for that wall or floor.
Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Location
- Clestrain (KW17)
- Region
- Orkney Islands
- Guarantee
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Quoting for work in Clestrain
Sealant work doesn’t have a standard rate, because every site is different. What we look at:
- Backing rod, priming and other preparation
- Distance, for remote addresses
- How much existing material needs removing
- The total length or number of joints
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.
Before you send an enquiry
We can often quote from photographs and a few details. Please tell us:
- Rough lengths or quantities, or drawings if you have them
- Where the site is, with the postcode
- When you need the work done
- Whether the building will be occupied during the work
Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.
Surface by surface
Linear joints
Joints at the top of partitions may need to move as the slab above deflects. The specified product and backing for that movement are what goes in, with no gaps along the run.
Drylining partitions
Plasterboard partitions are tested as a specific construction. The sealant detail has to be tested in that wall type, with the stated board layers first.
Building owners, agents and FMs in Clestrain
Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, which keeps the paperwork simple.
Compartments and services around Clestrain
Being on an island, Clestrain means planning around ferry times as well as the weather. The specification and photographs of each penetration let us bring the right products first time. In Scotland, clause 2.1.14 of the non-domestic Technical Handbook expects service penetrations to keep at least the fire resistance duration of the wall or floor, with proprietary products, intumescent ones included, tested for their end use. Where fire-rated sealant is specified, that’s what we install, to the tested detail.
For an estates team at a campus like Robert Gordon University Orkney Project, 4.1 miles to the north-west of Clestrain, summer M&E works are typically followed by a round of penetration sealing. Buildings near Clestrain get the fire-rated product that’s specified, installed to its tested detail.
Clestrain is about 9 miles west of Kirkwall, in the Orkney Islands. Clestrain sits inside our coverage and the rest of the Orkney Islands, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. 51 places across the Orkney Islands fall within our area, Clestrain among them.
We cover the KW17 postcode districts for service penetrations. Close to Clestrain, our area also takes in Midland (2 miles south-east), Orphir (2 miles east), Clouston (3 miles north), Kirbister (3 miles east) and Stenness (3 miles north). Where a site is remote or on an island, travel and materials need planning ahead, so the full address helps from the start.
Landmarks near Clestrain
For a walk, there’s Loch of Kirbister and Brodgar RSPB Reserve.
Diagnose, treat, sign off
We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. For a building near Clestrain, directions, keys and a contact on the day are worth sorting early. That goes into the plan alongside the quote.
- First we confirm the product and tested details named in the specification.
- We sort the openings by the detail each one needs.
- Improvised fillers and failed sealant are removed.
- Where the detail needs backing, it goes in at the stated depth.
- Fire-rated or intumescent sealant goes in around the services and is tooled off.
- We walk the completed areas with you and confirm the records agreed at quote stage.
What we need from you
- Send your site hours and access windows
- Flag any permit to work we’ll need
- Point out any areas we must not close
Get a fixed quote
For a fixed quote, call the office on 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.
Read more
Common questions from Clestrain clients
Which Scottish guidance covers penetration seals in Clestrain?
The non-domestic Technical Handbook, clause 2.1.14, expects a penetration to keep at least the wall or floor’s fire resistance period, with proprietary products tested for the use they’re put to. We install what has been specified, to the manufacturer’s tested detail, while design and approval sit with the designer and the verifier.
Can work at a site such as Robert Gordon University Orkney Project fit around teaching?
Yes, holiday working periods are the norm on campus jobs. Any paperwork you need, from RAMS to our insurance certificate and CSCS details, is confirmed with the quote.
Are you fully insured?
Yes. Mastic Doctor is fully insured, public liability included.
How long does a job like this take?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
What will the job cost?
Each job is quoted on its own details. To get one, phone 01277 525 020 or send details through our quote form with a description of the work.
Do you offer coloured sealant?
It depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.
What site paperwork can you supply?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
General trades versus a specialist
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Other services in Clestrain
When something else is needed
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Writing the fire-stopping specification
- Construction that lacks the fire resistance the seal relies on
- Openings that need collars, wraps, batts or boards rather than sealant
If in doubt, give us a call on 01277 525 020 or email a schedule or drawings and we will say what we think before you book.
Where we work in Clestrain
- Cable penetrations
- Joints between fire-resisting walls and floors
- Pipe penetrations
- Small duct penetrations where the tested detail allows
- Linear gaps at wall heads
- Service gaps in risers