Do you have a construction project in mind ? Are you looking for a reliable team to handle it for you ? We offer turnkey service for our Clients with minimum hassle. Bespoke interiors is our speciality, contact us today to discover how we can work together. https://gbgbuilders.co.uk

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Solid Partner for Designers, Architects & Developers since 2005
High-end
refurbishment
contractor

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Your home is one of the most
significant investments in
your life and we protect it by
being diligent in our work.
You deserve an outstanding service.
We respect your needs, the building’s
history, and the neighbourhoods that we
work in. I will personally oversee your project
to ensure that all the quality expectations
and deadlines are met.
A word from our director

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The team consists of engineers and project
managers, as well as long-standing craftsmen,
who have over 30 years of experience with various
finishes from marble to wood, glass and metal.
Our team brings its technical and project
management expertise, as well as exemplary
craftsmanship to every building project, helping our
clients’ designs come to life.
We are driven by
a passion for the
bespoke restoration
of London’s finest
architectural homes.
We were established in 2005
by Mariusz Gawecki,
with his father Eric.
75
completed
bespoke
projects
250K -1.5M
value
of a typical
contract
90%
interior designers and
architects Clients come back
to us for a repeat business

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Construction and
bespoke renovation
services in London for:
Prime property
Georgian property
Grade Listed building
Regency property
Victorian property
Edwardian property
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We renovate in the
areas of:
Knightsbridge,
Mayfair, Belgravia,
Kensington
& Chelsea, Fulham,
Notting Hill,
St John’s Wood
and Hampstead.
Our bespoke renovation teams
are proficient in amalgamating
apartments, building house
extensions, and transforming interiors
to your vision.
We are skilled in distinctive and
sophisticated finishes, restoration
of lost period features and
soundproofing challenges, as well as
manufacturing bespoke joinery and
furniture to your exacting standards.
We take additional care
and attention to deliver
projects with respect to
neighbouring properties
whilst protecting
common areas, reducing
noise and dust pollution,
and managing your
projects effectively
to a timely completion.
Your project is our focus.
You and your Clients deserve a reliable and trusted
contractor with years of experience in the period
property refurbishment market.
50
years combined
management experience
in construction
and refurbishment
1M-100M
market value
of individual
property that
we worked on

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How we
deliver your
projects?
Project management
Your project is led forward and personally
supervised by Mariusz Gawecki, our company
director. He has over 20 years of hands-on
experience in successfully delivering projects.
Health & Safety
We place great emphasis on planning
works carefully and patiently, then
executing them safely. Our sites are well
looked after clean zones.
Bespoke joinery
We specialize in delivering solutions with unusual
finishes, such as metal inlays, liquid metal, fabrics,
or gilding. With the ultimate craftsmanship, your
project will benefit great attention to detail.
Quality control
We meet and exceed the highest standards.
We have a passion for architectural
restoration, vast experience of unique finishes,
and a keen eye for detail.
Aftercare
We are here to stay. You can enjoy hassle -free
aftercare and support from us when your
project has ended, and even after your twelve
month warranty period.
Mechanical & Electrical (M&E)
Behind the walls of your perfect home lies
kilometers of electrical cables and copper
pipes. We take enormous care fit only the
highest quality components.
Environmental
In this day and age, being environmentally
friendly is crucial. From sourcing FSC certified
timber, using safe paint, dust control, and
reducing our carbon footprint.

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Luxury apartment
in Hampstead
Amalgamation
and back to brick
renovation of two
separate flats
in a Grade listed
Georgian building
dating back
to the 1800s.
Mariusz, Eric and the team
delivered the project
on time, on budget and
to an exceptionally
high standard. In our
experience this is rare.
- Michelle

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High-end refurbishment
in Cadogan Square, Knightsbridge
It was a Grade II listed
building that required
significant renovation works.
Our UHNI client purchased
a grand 600 square metre
maisonette in Cadogan
Square, Knighstbrige, which
is one of the most desirable
luxury residential addresses
in London.
GBG demonstrated
great professionalism
in delivering under tight
timelines and under
pressure.
- Maria

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Luxury family home
renovation in Fulham
A professional couple was seeking
to renovate a newly purchased
Victorian house in Fulham.
The four storey property has
now undergone a complete
renovation and bespoke fitting-
out in record time.
In the end, we organised this
house to consist of 5 bedrooms,
3 bathrooms, a home office,
a dining room, a living room,
a kitchen and a terrace.
Mariusz and the team at GBG delivered
a complex and comprehensive redevelopment
project in Fulham that exceeded expectations.
- Stephen & Joanna

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Abbey Road
penthouse
renovation
Space is a luxury, and we created
an additional floor level that
now hosts the master bedroom.
The unique staircase that leads
to the bedroom has a combination
of walnut and whitewashed oak,
rendering it incredibly beautiful.
Our build definitely would not have
turned out as amazing as it had
without them, as they did much more
than just build. They helped design
and used a lot of common sense when
they were under time pressure and
didn’t have guidance from us.
- Sonya & Daniel

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Wandsworth groundfloor
redesign renovation
We take pride in meeting budgets and deadlines. Even in challenging projects like this one.
A highly successful outcome was possible thanks to thoughtful design, planning, daily site project
management, and a fruitful collaboration with the knowledgeable interior designer.
An amazing family in Wandsworth
wanted to redesign the ground
floor of their house and redecorate
it completely.
We had a lot of fun and laughter
while working with them on a new
space together with their interior
designer.
From the initial meeting GBG
provided a detailed review
of the design from a structural
perspective and together
we were able to assess any
constraints prior to the build,
allowing the program to run
smoothly.
- Interior Designer

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Light-filled maisonette
in Frognal, Hampstead
This property, in an idyllic garden location
in the historical part of Hampstead
dating back to the 1800s, was purchased
by a lovely female Swedish entrepreneur.
The intention of our cooperation
was to completely renovate her home.
Hampstead is known
as a residential area
for London’s intelligentsia,
writers and artists.
It is one of the most
desired neighbourhoods
in which to own
a property within the UK.
Mariusz and GBG Building
Services did an excellent job
on my total internal renovation
of a 2-bed period maisonette
in Hampstead. Mariusz and his
team were responsible for
the full build, including all
decoration and joinery works.
- Tess

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Private Clients
We renovated a 3rd-floor
duplex apartment in Chesham
Place, Belgravia for a client
who faced a serious water leak
due to blocked gullies.
Belgravia
Flooded apartment
renovation
Kensington
Philimore
Gardens
Complete back to bricks house
refurbishment. Steel frame insertion
from the basement level up to allow
for new arrangements to all partition
walls throughout.
Decorating and installation of 2500
sqm of luxury wide vinyl wallcovering
though six luxury apartments and
a penthouse for an international
developer.
Knighstbridge
Beaufort
Gardens
Chelsea
Barkstone
Gardens
Complete renovation to top
floor apartment, unrenovated
for fourty years.
Soft refurbishment to four bedrooms,
three bathrooms, two reception room
luxury apartment on first floor next to
Harrods luxury shopping center.
Knightsbridge
Hans
Court
Kensington
Adam & Eve
Mews
First floor stripout, soundproofing
and rebuilt interiors including bespoke
joinery design and manufacturing.

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Hospitality projects
70 bedrooms refurbishment
works to a 4 star hotel.
Millennium
Mayfair
Grosvenor Hotel
Millennium
Gloucester
road Hotel
Refurbishment works
to 142 bedrooms and bathrooms
within a live 4star London hotel
in 3 months timeframe.
Refurbishment to
23 beautifully designed
bedrooms and corridors for this
magnificent Client.
Royal
Automobile Club,
Pall Mall
Hilton
London
Paddington
Iinterior fit-out
and a conversion of an unused
office space into bespoke luxurious
executive lounge.
Complete refurbishment works
to a complete unique hotel with
a magnificent view of the lake.
66 bedrooms, 2 restaurants,
reception area and common spaces.
Kirtons
Farm Hotel,
Reading
Lakeside
restaurant,
Cheltenham
Successful, six weeks programme,
day and night refurbishment
and fit-out to a restaurant before
a major town event.

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What makes us unique?
Reliability
Professionalism
Reputation
Communication
Quality
Deadlines & budgets
Consistent, dependable,
top- quality results are
important to you.
Our extensive experience with
clients allows us to confidently
deliver our services with an honest,
grounded, and realistic approach.
We are a team of passionate
individuals with great competence
and skill in delivering high-end
bespoke renovations.
You will always be able to make
informed decisions by relying on
our knowledge and experience.
Our clients continue to regard us
as friends - they trust our company
time and time again with new
commissions.
We have built our story on solid
foundations, together with our
clients.
We strongly believe that this is the
key to a successful collaboration.
Your feedback and queries are our
priority. We return calls within two
hours and reply to emails by the
next business day.
Maintaining the highest standards
is our way of showing respect
to you and your property.
We find tailored solutions that work
best for you and which provide
quality that lasts.
Your requirements will be met by
providing you with honest, realistic
pricing and a detailed project
roadmap.
We find immediate solutions
to an ever-changing building
environment.
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Contact us to discuss
your next project today.
GBG Building Services
59 Hodder drive, UB6 8LL London
+44 (0) 208 991 5700
projects@gbgbuilders.co.uk
www.gbgbuilders.co.uk
Mariusz Gawecki
Director
+44 0791 787 6080
mariusz@gbgbuilders.co.uk