Construction Mastic in Haverstock
We carry out mastic packages for new-build and refurbishment projects in Haverstock. Send details for a fixed quote.
- Oversized or tapered gaps around new frames
- Bath and shower joints scraped during the final clean
- Existing joints on a refurb that need cutting out and resealing
Construction mastic for businesses in Haverstock
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our construction mastic in Haverstock
We work to the specification and the programme rather than whatever product is to hand. If a product is named, that’s what goes in; any alternative we suggest is put to you before anything changes. Backing, primer and depth follow what the sealant maker sets out so the detail on the drawing is what ends up on site. If you are dealing with sanitary sealant damaged by following trades and new external sealant already peeling away, we can put it right, whatever the surface. Searching for sealant specialists in Haverstock? Mastic Doctor has worked for contractors, FMs and building owners since 2005.
Building sites in London tend to be tight: small compounds, delivery slots and shared hoists and scaffold. Mastic is typically one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
Our workmanship is guaranteed for 12 months, in Haverstock as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Place
- Haverstock (NW3, NW5, NW1)
- Wider area
- Greater London
- Cover
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Commercial clients in Haverstock
Whether you’re a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
Do you need construction mastic in Haverstock?
On a live site, contamination is the biggest threat to a new joint. Dust, film adhesive, damp and grease on the joint faces prevent a proper bond.
Look out for the following:
- Missed perimeter joints on a new elevation
- Different trades sealing to different standards
- Caulk cracking where joints are moving more than expected
- Early adhesion failures on new external joints
Projects at colleges like Working Men’s College, 1.2 miles to the east of Haverstock, tend to run to term dates, so the mastic is planned tightly.
What to look for in a quote
- Are they CHAS accredited or on Constructionline?
- How the joint faces will be prepared and primed
- Whether old or failed sealant will be cut out, not overlaid
- Who will actually carry out the work
Also near Haverstock
Also in Haverstock
Doing it in-house
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
There’s also the paperwork. 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.
After the work
Your facilities or cleaning team can help the joints last. Share these points with them:
- Check frame gaps are within the sealant’s range before sealing
- Ask for joint and product checks before the package is urgent
- Put any product change through the designer first
- Protect sealed areas from following trades
Tell the builders’ clean team which areas have new sealant. Blades and abrasive pads are the commonest cause of damage at the final clean, so stick to soft cloths and gentle cleaners near sealant.
Leaving the mastic snag list to the end squeezes everyone. Clearing snags area by area spreads the work out.
How the quote is worked out
The price varies from site to site. It mainly depends on:
- The site’s rules and procedures
- Whether old sealant has to be cut out first
- Phasing around occupants
- The total length or number of joints
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
What to include in your enquiry
A few photos plus some basic facts will normally do. Please tell us:
- Whether an asbestos survey exists
- Photos of the joints, close up and from further back
- How the joints are reached, and at what height
- The product your specification calls for
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, speak to us on 01277 525 020 or email a schedule or drawings.
Your questions answered
Does your area include sites such as Regis Road Business Park, near Haverstock?
Yes. We cover Haverstock and the area around it, including industrial estates, business parks and retail parks such as Regis Road Business Park. A few photos and the unit address let us price the work.
Could you schedule work at a campus like Regent's University London for the vacation?
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.
When can you be on site?
We’re in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.
Can the building stay open while you work?
Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.
Can you handle several sites?
Yes. Multi-site work and planned programmes are a core part of the service, planned site by site to suit how each building is used.
Are you CHAS accredited?
Our applicators hold CSCS cards, and we are CHAS accredited and a Constructionline member. Public liability insurance of five million pounds is in place too.
Is it fine to apply new sealant on top of old?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Building and refurbishing in Haverstock
The area within 2 miles of Haverstock holds plenty of hotels. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight. As part of Greater London, Haverstock is inside the ULEZ, which applies to every van on site. Deliveries are booked and storage is tight, so mastic materials come in as needed.
Hotels like Hampstead Britannia Hotel, under half a mile south-east of Haverstock, rarely close for long, so refurbishment mastic is phased floor by floor. New units and refits on sites such as Regis Road Business Park (to the north-east of Haverstock) need their panel and perimeter joints sealed to the specification.
Haverstock is about 1 mile south-east of Hampstead, in Greater London. Businesses, contractors and managing agents in Haverstock can call on us for mastic packages. Across Greater London, 764 places are covered, Haverstock among them.
Business premises anywhere in NW3, NW5 and NW1 are within our area. We cover commercial and managed buildings on Eton Road, Lawn Road and Ornan Road. Close to Haverstock, our area also takes in Belsize Park (1 mile north), Primrose Hill (1 mile south), South Hampstead (1 mile west), Swiss Cottage (1 mile west) and Chalk Farm (1 mile east). Bigger towns within reach include London (4 miles south-east), Kensington (4 miles south-west), Shoreditch (4 miles east), Walthamstow (7 miles north-east), Hoxton (3 miles east) and Whitechapel (4 miles south-east).
Near you in Haverstock
We work on buildings around Cecil Sharp House, Primrose Hill and St. Mary's Town and Country School and the streets around them. You will also find St Paul's Church of England Primary School (under half a mile south) and The Washington pub (under half a mile north). The closest station to Haverstock is South Hampstead station, roughly 0.7 miles west of the centre. A little further out are Wellington Hospital (0.9 miles south-west) and Isokon Gallery (0.5 miles north). Not far away are Adelaide Nature Reserve and Primrose Hill.
On site: what to expect
Site rules come first: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact. All of Greater London is in the ULEZ, and kerbside space in Haverstock can be scarce. If there’s a loading bay, a car park or a permit we can use, tell us when you send details.
- 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.
- Any frame gaps or issues outside our scope are flagged to the site team.
- Final snagging is completed and the 12-month guarantee applies.
Getting the site ready
- Point out parking and an unloading spot
- Let us know about inductions and permits
- For older buildings, check the asbestos register before work
Ask for a quote
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or call the office on 01277 525 020 or email us to discuss it first.