Mastros
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Home Systems

Home Systems

Essential Infrastructure, Expert Execution

Professional home systems services for Paris properties, from electrical compliance (NF C 15-100) to plumbing, heating installation, and mandatory diagnostics. Certified technicians who understand the unique challenges of pre 1990 Parisian buildings.

circle check NF C 15-100 compliance certified
circle check Licensed and insured professionals
circle check Code compliance guaranteed
circle check Warranty protection included
Describe your Project
The challenges of home systems renovation in Paris
Why electrical, plumbing, and heating systems in Paris require professional expertise, from outdated infrastructure to strict compliance requirements and emergency situations.
Electrical compliance
Pre-1990 apartments rarely meet NF C 15-100 standards. Non-compliance voids insurance, blocks heat pumps, and creates fire risk. Upgrades cost €4,500-€8,500.
Plumbing infrastructure age
Pre-1949 buildings risk lead pipes. 1950s-70s face corrosion. Paris water pressure needs specific fixtures. Emergency leaks cause great amount in neighbour damage.
Heating system coordination
Heat pumps need electrical upgrades (€2-4K) and proper sizing. Installing before insulation wastes 30-50% capacity. Sequence matters: insulate first.
Mandatory diagnostic requirements
Property sales require multiple diagnostics (€150-400 each). Missing reports delay sales 2-4 weeks and can void transactions entirely.
How Mastros coordinates 
your installation
From diagnostic to certification, we ensure complete coordination with built-in payment protection.
01
Describe your project
Share your current system, property layout, and requirements. We assess scope and compliance needs.
02
Receive matched proposals
Certified technicians specialising in your system type send you detailed quotes within 72 hours.
03
Select your team
Review certifications, experience, and proposed solutions before choosing your installer.
04
Track execution
Milestone-based escrow with 5% retention. Track installation schedule and work progress.
05
Complete & verify
System testing, compliance certification, and final inspection before releasing final payment.
What's included in every home systems project
Certified work
  • Professional diagnostic and assessment
  • Licensed & insured technicians
  • Quality materials and equipment
  • Code compliance verification
  • Official certification documents
  • Verified artisan insurance (Décennale + RC Pro)
  • Escrow payment protection with 5% retention
Scope of work
  • Electrical upgrade - 1 days to 3 weeks
  • Plumbing services - 1 to 5 days
  • Heat pump installation - 3 to 5 days
  • Diagnostic Services - 1 to 3 hours
Technical expertise
  • NF C 15-100 certified electricians
  • Licensed plumbers (PER/Copper)
  • RGE heating technicians
  • Certified diagnostic inspectors
  • Building code specialists
  • Refrigerant certified (heat pumps)
Not Haussmann 32
Not HaussmannParis 20ème

Involved from the very beginning of the apartment search, the client presented us with this 32 m² apartment in Paris's 20th arrondissement. While attracted by the large windows and unobstructed view, he was nonetheless perplexed by the amount of work required and the existing layout: a disproportionately large kitchen, bathroom, and toilet, making the main room too small and difficult to furnish, single-glazed windows, and outdated finishes.

Our initial role was to guide our client through the purchase process by analyzing the energy performance certificate, the quality of the building's management, and the apartment's inherent qualities.

Since the apartment was structurally divided in two by a load-bearing wall, our concept was to consolidate all the wet rooms into the first zone, thus freeing up the second zone, which would benefit from the light and view, to create a 23 m² living space.

The two zones are separated by an original glass door and distinguished by their flooring: tiles for the waterproof zone and natural linoleum for the living area. This keeps the "technical" spaces grouped together and isolated from the more formal living and sleeping areas.

A simple layout, custom-made furniture, and meticulous attention to detail to achieve the right dimensions for each function allowed us to create a comfortable and spacious apartment. A small apartment that feels like a large one.

The exposed concrete walls, revealed by stripping away the layers of plaster, led us to choose raw and understated materials for an original and calming decor. The use of raw MDF for all the woodwork adds a touch of softness, contrasting with the concrete and aluminum countertops. The light gray tiles and natural linoleum bring light and highlight the colorful objects in the home.

Despite a tight budget, we replaced the windows with double-glazed wooden frames whose white paint is guaranteed for 20 years in order to best respect the original building and promote the use of bio-sourced materials.

Demolition, Electricity, Flooring, Paint
Our services
Essential infrastructure services for your property. All work includes qualified professionals, compliance verification, and milestone payment protection.
Electrical Upgrade NF C 15-100
600 € - 15 000 €
Plumbing services
150 € - 12 000 €
Heating system repair
150 € - 8 500 €
Property diagnostics
100 € - 800 €
Home safety systems
200 € - 5 000 €
What your investment includes
Home systems work is labor-intensive, requiring certified technicians for safety and compliance. 

 Here's how your budget is typically allocated for electrical and technical upgrades.
PRICE RANGE — Electrical Compliance Upgrade
600 € - 15 000 €
Complete NF C 15-100 upgrade for typical Paris apartment (50m²)
Where your budget goes
  • Certified electrician labor: 60 to 70%
  • Wiring, panel, components: 25 to 35%
  • Consuel certification: 2 to 5%
  • Pre-work diagnostics: 3 to 5%
Why Mastros
Transparent cost breakdown
See exactly where every euro goes
Full breakdown
Milestone payment protection
Pay only when work is approved
Protected
Full visibility on scope and pricing
Know what you're paying for
Real-time
You approve every change
No modifications without your consent
Full control
Verified certified technicians
Identity, insurance, qualifications checked
100% verified
Consuel certification handled
We coordinate the compliance process
Included

Get your free quotes

Describe your project and receive proposals from verified certified technicians within 72 hours. No commitment, 0% commission.