
Penicuik mastic sealing
Mastic sealing for building owners, managing agents and housing associations throughout Penicuik and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- Leaks at window and door perimeters
- Brittle perimeter mastic across a building
- Draught complaints from residents or tenants
Mastic sealing for Penicuik sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
What we can’t put right
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Masonry that has broken away beside the joint
- Misted or failed double-glazed units
- Materials that need asbestos testing before work
Not sure which it is? You can ring 01277 525 020 or send details through our quote form and we’ll tell you honestly.
What we seal
- Communal kitchens and washrooms
- External wall and movement joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Balcony and threshold joints
Mastic sealing in Penicuik, done properly
Different joints need different sealants. Low-modulus neutral-cure silicone suits many window perimeters and external movement joints, while hybrid polymer sealants grip many materials and are often paintable, and colours are confirmed for whichever product is used. We work on external wall and movement joints, communal entrances and stairwells and window and door perimeters on blocks, and what we’re called in for most is complaints coming in block by block and failed external movement joints. Whoever orders the work in Penicuik, the brief is typically the same: a clear scope, tidy work and joints that don’t fail again.
Owners with several buildings in a town like Penicuik can group mastic work into one programme. We move block by block once you’ve told residents what to expect.
Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If our installation lets you down in that time, we return and fix it.

- Location
- Penicuik (EH26)
- Region
- Midlothian
- Cover
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Towns and villages near Penicuik
Also in Penicuik
Keeping the joints sound
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Make it easy for occupiers to report draughts
- List the paperwork your organisation requires when you send details
- Check sealant joints during planned building inspections
- Avoid piecemeal callouts where you can
If a joint we sealed fails within 12 months, tell us and we’ll look at it. Beyond that, routine checks spot the next round of repairs.
Leaks at window perimeters spoil finishes and can affect frames. Resealing early keeps the job small.
From enquiry to sign-off
We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Jobs in Penicuik are planned with two things in mind: the forecast for external joints and the building’s hours for internal ones. Photos or drawings let us give a fixed quote and a realistic plan.
- First comes a look at the joints and, for older buildings, the asbestos records.
- The products and programme are set out in a fixed quote.
- Failed mastic is removed completely.
- Joint faces are cleaned, backed and resealed.
- We finish each building before moving to the next.
Before we start on site
- Let us know about inductions and permits
- Let building users know which areas are affected
- Share the asbestos register for older buildings
Quotes
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or give us a call on 01277 525 020 or use the quote form if you’d rather talk the job through.
Advice
Why deal with it now?
Looking at mastic during planned maintenance costs little. Waiting until leaks appear means working under pressure and less choice about when. In Penicuik, rain and frost work into any failed joint, so small failures grow. Catch it early and it stays a sealant job.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What you get with us
- Coloured sealants to suit the setting, where available
- 12-month guarantee on workmanship
- Clear, fixed quotes
- Work carried out by CSCS-carded applicators
Take a look at our cost guide or our accreditations.
Your questions answered
Can you work at a site such as Eastfield Industrial Estate, by Penicuik?
Yes. Estates, retail parks and business parks around Penicuik, Eastfield Industrial Estate among them, are all within reach. Photos and a short description are enough for a first look.
Which documents can you supply for work in Penicuik?
We will confirm the paperwork you need, such as RAMS, our insurance certificate and CSCS details, with the quote. Our applicators are CSCS-carded, and we carry £5m public liability insurance.
What’s the quickest route to 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 photos and a postcode.
Are you CHAS accredited?
Yes. We’re CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.
Who decides which product is used?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
How soon can the area be used again?
The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, so we’ll confirm the curing time on the day.
Do you take on small jobs?
We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.
Common problems we fix in Penicuik
Buildings move with temperature and moisture, and the sealant takes up that movement. A joint that was too narrow, too thin or the wrong product can’t cope long before it should.
Site and facilities staff are often the first to spot these:
- Draughts at frames across a block
- Movement joints with sealant missing
- A mix of products and colours from past repairs
- Water getting in round frames after rain
Property owners at sites such as Eastfield Industrial Estate (to the east of Penicuik) can have mastic renewed between lettings.
Questions to ask before you book
- Proof of insurance
- Health and safety accreditation such as CHAS
- Their plan for phasing and protecting the area
- How joint depth will be controlled
Owners, agents and contractors
CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Penicuik can form part of a wider programme across Midlothian.
Blocks and managed buildings in Penicuik
Being in the east of Scotland, Penicuik gets less rain than the west coast. External mastic still needs a dry joint and the right temperature, and winter mornings can be frosty.
Site managers at schools like Beeslack Community High School can fit frame mastic into the summer works. Student blocks close to universities like University of Edinburgh - Easter Bush Campus (to the north of Penicuik) are easiest to work on between tenancies.
Penicuik is about 8 miles south of Edinburgh, in Midlothian. Across the EH26 postcode area, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 34 places in Midlothian, from busy centres to rural villages. Sites around Edinburgh have their own page, roughly 8 miles from Penicuik.
Anyone looking for mastic sealing in EH26 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Buildings on Windsor Square, High Street and The Square are within our area for mastic joints. You’ll find Penicuik on or near the A701 and A702. Close to Penicuik, our area also takes in Milton Bridge (1 mile north-east), Howgate (2 miles south-east), Silverburn (2 miles west), Swanston (4 miles north) and Bonaly (5 miles north). Bigger towns within reach include Bonnyrigg (5 miles north-east), Dalkeith (7 miles north-east), Loanhead (4 miles north-east), Gorebridge (7 miles east), Newtongrange (7 miles east) and Mayfield (8 miles east). Penicuik is one of the busier places in Midlothian, and we take on mastic joints for its commercial and public buildings.
Landmarks near Penicuik
In Penicuik, that means premises near Craigiebield House Hotel, among other places. Well-known places in the area include Rosslynlee Hospital (1.7 miles north-west) and Penicuik Paper Heritage Museum (0.7 miles south). Not far away are Edgelaw Reservoir and Turnhouse Hill.