
Construction and new-build mastic in Holloway, Greater London
Mastic packages for new-build and refurbishment projects across Holloway, by CSCS-carded applicators. CHAS accredited and fully insured.
- Missed perimeter joints on a new elevation
- Failed sealant in an existing building being refurbished
- A long mastic snag list close to completion
Construction mastic across Holloway
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Building and refurbishing in Holloway
Plenty of hotels sit less than 2 miles from Holloway. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight. Site traffic in Holloway falls within London’s ULEZ, like everywhere else in Greater London. Add booked deliveries and tight storage, and the mastic package needs planning with the site team.
Building work at universities like American University in London (to the north-east of Holloway) is often timed for the summer, mastic included. For a contractor at a hotel such as Mondrian Apartments & Hotel, less than half a mile north-east of Holloway, the mastic often has to be finished before a reopening date. For contractors refurbishing units at places like Hannover Industrial Estate, 0.5 miles south of Holloway, the mastic covers cladding panels, roller-door and window perimeters.
Holloway is about 2 miles north-west of Hoxton, in Greater London. Businesses, contractors and managing agents in Holloway use us for work on mastic packages. Holloway is one of 764 places in Greater London on our list for mastic packages.
We take on mastic packages across the N7, N19 and N4 postcode area. For a building on Penn Road, Lough Road and Tabley Road or nearby, we can quote for mastic packages. Just outside Holloway, we also work in Nag's Head (1 mile north), Lower Holloway (1 mile south), Tufnell Park (1 mile west), Upper Holloway (1 mile north-west) and Barnsbury (1 mile south). A short drive away, we cover London (4 miles south), City of Westminster (3 miles south-west), Marylebone (3 miles south-west), Kensington (5 miles south-west), Shoreditch (3 miles south-east) and Walthamstow (5 miles north-east).
Near you in Holloway
We work on buildings around Vaughan Williams Memorial Library, Whittington Park and Beacon High and the streets around them. Other local landmarks include Musical Theatre Academy (0.8 miles south-east) and The Coronet pub (under half a mile south-east). The closest station to Holloway is Drayton Park station, about 0.6 miles south-east of the centre. Nearby you’ll also find Brunswick Centre (2.3 miles south) and Montfichet's Tower (3.1 miles south). Green spaces nearby include St. James's Park Lake and Dartmouth Park Hill.
Construction mastic in Holloway
Getting a subcontractor through site induction should be simple. Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote. We work on window and door perimeters, sanitary and kitchen joints and internal decorators’ caulk, and the usual reasons a site gets in touch are failed sealant in an existing building being refurbished and inconsistent sealant finishes from plot to plot. One point of contact handles commercial sealant work in Holloway from the first photographs to the final walk-round, whether it’s one building or several.
A great deal of London construction is refurbishment of occupied or part-occupied buildings, alongside new blocks. Replacement windows, recladding and fit-outs leave perimeter and facade joints to seal, often next to people still using the building.
We stand by our work: 12 months, guaranteed. That covers our preparation and application.

- Location
- Holloway (N7, N19, N4)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Why act early in Holloway
Getting the mastic contractor involved early pays off. Early involvement means gaps, products and access are sorted before the programme bites. Called in at the end, the same issues surface during handover. Getting scaffold, permits or access booked in Holloway takes effort, so while access is arranged it pays to renew all failing joints, not just the worst.
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site rules also count.
What you get with us
- Clear, fixed quotes
- Workmanship guaranteed for 12 months
- One number for every site we cover
- Failed material removed, not covered up
Take a look at our cost guide or our accreditations and insurance.
From enquiry to sign-off
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, with the work itself normally taking a few days on a modest refurbishment and longer on multi-plot or multi-storey schemes. Planning a London job such as one in Holloway starts with access: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Send the building rules and access times with your enquiry.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- 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.
Preparing the site
- Tell us which areas need to stay in use
- Arrange parking or a loading space
- Move anything stored against the joints
Ask for a quote
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or give us a call on 01277 525 020 or send details through our quote form if you’d rather talk the job through.
Advice
Different surfaces, different methods
Bathrooms, en suites and washrooms
In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Each joint is prepared, sealed and finished with a neat tooled line.
Snagging before handover
Damaged, missed or untidy joints make up most snag lists. We price snagging as part of the package or as a separate visit, depending on what suits the programme.
Site staff or a sealant specialist?
Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.
Aftercare for building managers
A few simple habits keep the new joints working:
- Record the products used in the O&M file
- Protect sealed areas from following trades
- Stick to the specified sealant rather than a generic substitute
- Plan external elevations with the weather in mind
Record which products went where in the handover file. That helps the building owner maintain the joints later, and tells you what to reseal with. We can confirm the handover information you need when we quote.
Leaving the mastic snag list to the end squeezes everyone. A planned close-out through each area as it completes keeps the list short.
Honest limits
Some faults sit outside our scope, and we say so rather than covering them up:
- Designing joint widths or choosing the specification (that sits with the designer)
- Rework caused by others damaging completed areas
- Defective windows, doors or glazing units (the supplier or installer’s job)
Not sure which it is? You can speak to us on 01277 525 020 or use the quote form and we will tell you honestly.
Joints and surfaces we work on
- Sanitary and kitchen joints
- Cladding and panel joints
- Brick and block movement joints
- Floor and skirting junctions
- Internal decorators’ caulk
- Window and door perimeters
Questions about Holloway
Do you cover business parks and estates near Holloway, such as Hannover Industrial Estate?
Yes, sites like Hannover Industrial Estate are within our area, along with the rest of Holloway. Send details of the unit and the work through our quote form for a quick quote.
Can you work on a hospital site such as The Whittington Hospital?
Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.
Do you guarantee new-build sealant work?
It carries a 12-month guarantee on our workmanship. We carry five million pounds of public liability insurance.
How do we ask for a quote?
You can use the quote form on this site; alternatively, phone 01277 525 020 or email us. Include photos or drawings if you have them.
Who decides which product is used?
Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
When can the area be used after sealing?
We will confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.
Can you come in just for snagging?
Yes, we can. Send the snag list or photos and we’ll price it, with the work timed to your handover date.