Lerwick mastic sealing
Mastic sealing for Lerwick, from a contractor working since 2005. Fully insured, with a 12-month guarantee.
- A mix of products and colours from past repairs
- Damp patches beside frames
- Occupiers reporting cold air round windows
Need mastic sealing in Lerwick?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Questions about Lerwick
Is North Ness Business Park, near Lerwick, within your area?
Yes. We cover Lerwick and the area around it, including industrial estates, business parks and retail parks such as North Ness Business Park. Photos and a short description are enough for a first look.
Our building in Lerwick is near the coast: does that change the sealant?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. We check the specified product suits the exposure and pay close attention to preparation.
Which sealant will you use?
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.
Will residents or tenants be disturbed?
The work is planned around occupiers. We agree the programme so you can notify occupiers and communal access is kept open.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
Do you check for asbestos in old sealant?
Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
Is Lerwick in your area?
Yes. We cover Lerwick, within our coverage of Greater London, South East England and Scotland. For a quote, phone 01277 525 020 or email us.
Mastic sealing in Lerwick, done properly
Mastic Doctor has sealed joints on commercial and residential blocks since 2005. Every applicator holds a CSCS card, and the work is backed by public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. We work on communal entrances and stairwells, shopfronts below residential blocks and window and door perimeters on blocks, and what we’re called in for most is a mix of products and colours from past repairs and mastic failing across several blocks on an estate. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Lerwick is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Around Lerwick, outside mastic waits for dry weather and the right temperature. We agree a window with some flexibility.
Guaranteed is the last step of every job. Our workmanship is backed for 12 months, and the quote explains what it covers.
- Location
- Lerwick (ZE1)
- Region
- Shetland Islands
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Towns and villages near Lerwick
Other services in Lerwick
Do you need mastic sealing in Lerwick?
Frames, panels and masonry expand and contract through the year, and every joint has to stretch and squeeze with them. A joint that was too narrow, too thin or the wrong product can’t cope long before it should.
Any of the following is a good reason to get the joints checked over:
- Patchy repairs in mismatched sealant
- Damaged joints in communal entrances and corridors
- Brittle perimeter mastic across a building
- Open joints in brickwork or panels
Site managers at schools like Anderson High School can fit frame mastic into the summer works.
What to look for in a quote
- How they handle RAMS and site documents
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Can the work be phased to keep areas open?
- The named product and why it was chosen
What happens if it’s left?
Sealing over failed mastic looks tidy for a while. It won’t grip the old sealant and soon comes away. Cutting out and resealing properly does it once. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, so a failed joint has time to cause damage. Resealing early avoids that.
What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a fixed quote when you’re ready.
Why clients in Lerwick choose us
- Coloured sealants to suit the setting, where available
- RAL and finish matching where the product range allows
- CSCS-carded applicators
- Constructionline member
Take a look at our cost guide and our accreditations.
Block-wide mastic in Lerwick
With the shore within about 1 mile, Lerwick counts as a coastal location. On buildings near the shore, the side facing the weather typically needs its mastic renewed first. Island jobs, Lerwick among them, are planned around the ferry and the forecast. Send photographs and addresses so every building can be covered on as few trips as possible.
Trustees of buildings like St Margaret's Roman Catholic Church can bring frame and external mastic into a planned maintenance list. For owners of several units at places like North Ness Business Park, which lies north-east of Lerwick, one programme can deal with frame and external mastic across the lot.
Lerwick is in the Shetland Islands. We cover Lerwick, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Lerwick is one of 63 places in the Shetland Islands on our list.
Postcode districts covered here: ZE1 for mastic joints. For a building on High Street, Market Street and Church Road or nearby, we can quote for mastic joints. Access to Lerwick is via the A969 and A970 among other routes. Sites close to Lerwick are covered too, including Sound (1 mile south-west), Gremista (1 mile north), Heogan (1 mile north-east), Grindiscol (2 miles south-east) and Gunnista (2 miles north-east). As one of the bigger centres in the Shetland Islands, Lerwick has a broad mix of commercial, public and industrial buildings, and we cover them all. Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you call the office on 01277 525 020 or send photos by email.
Around Lerwick
We work on buildings around Gilbertson Park and Grand Hotel, among other places. Well-known places in the area include Gilbert Bain Hospital (under half a mile south) and Shetland Museum (under half a mile north-east). Green spaces nearby include Setter Hill and Clickimin Loch.
How the job changes by surface
Commercial and mixed-use buildings
Commercial occupiers usually stay open during the work, so we plan around them.
Estate-wide resealing programmes
An estate of similar buildings suits a rolling programme. Each block is priced and scheduled in order.
Commercial clients in Lerwick
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.
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.
When something else is needed
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. It won’t fix:
- Asbestos-containing sealant, which we don’t remove
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
If you’re not sure, just phone 01277 525 020 or send photos by email and we will give you a straight answer before you book.
Where we work in Lerwick
- Window and door perimeters on blocks
- Communal entrances and stairwells
- Balcony and threshold joints
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- External wall and movement joints
Diagnose, treat, 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. Then we strip out anything that has failed, prepare every joint and seal it. For work around Lerwick, we aim for one trip, which is why we ask for photos and a full list first. Outside work also needs a suitable weather window.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Finished joints are looked over and the 12-month guarantee confirmed.
Getting the site ready
- Have the specification and drawings to hand
- Let us know about inductions and permits
- Point out any areas we must not close
Quotes
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.