NICE Class 37 is a services class covering construction, installation, repair and maintenance services, plus mining, oil and gas extraction. It is highly relevant to Nepal's construction-led economy. You register a Class 37 trademark with the Department of Industry, and it protects your service brand — with a key line: building or repairing something is Class 37, but designing it (architecture) is Class 42, and transforming materials (like tailoring or metal plating) is Class 40.
Key Takeaways
- Class 37 is a services class — construction, installation, repair and maintenance, plus mining and drilling.
- Building and repairing are Class 37, but architectural design is Class 42 and material-transforming work is Class 40.
- It includes plumbing, electrical, painting and roofing work, vehicle servicing, and cleaning and laundering.
- It excludes physical storage (Class 39), architectural and software services (Class 42), and transformation like tailoring or metal casting (Class 40).
- Nepal's construction companies, contractors, repair shops and cleaning services file in Class 37.
- Register with the Department of Industry for a renewable 7-year term.
What does Trademark Class 37 cover?
Class 37 covers construction services; installation and repair services; and mining extraction, oil and gas drilling. The unifying idea is building, installing, repairing and maintaining physical things — restoring an object without changing its essential nature. It ranges from constructing buildings, roads, bridges and dams, through plumbing, electrical, painting and roofing installation, to repairing vehicles, equipment and computer hardware, and cleaning and laundering services.
Full list of services in Class 37
Below is the complete alphabetical list of Class 37 services indications from the WIPO NICE Classification (13-2026 edition) — 166 entries in total. Use it to find the exact wording for your specification when you file in Nepal:
- Airplane maintenance and repair
- Anti-rust treatment for vehicles
- Artificial snow-making services
- Asphalting
- Assembly of prefabricated houses
- Assembly services relating to the installation of furniture
- Boiler cleaning and repair
- Bricklaying
- Building construction supervision
- Building insulating
- Building of fair stalls and shops
- Building sealing / damp-proofing [building]
- Burglar alarm installation and repair
- Burner maintenance and repair
- Carpentry services
- Charging of electric vehicles
- Chimney sweeping
- Cleaning of buildings [exterior surface]
- Cleaning of buildings [interior]
- Cleaning of clothing
- Cleaning of surfaces for mould remediation / cleaning of surfaces for mold remediation
- Clock and watch repair
- Clothing repair
- Construction
- Construction consultancy
- Custom installation of exterior, interior and mechanical parts of vehicles [tuning]
- Demolition of buildings
- Deodorizing of upholstery / deodorising of upholstery
- Diaper cleaning
- Disinfecting
- Disinfecting of surgical instruments
- Drilling of deep oil or gas wells
- Drilling of wells
- Dry cleaning
- Electric appliance installation and repair
- Electric vehicle battery swapping services
- Excavation of ruins, other than for archaeology
- Factory construction
- Film projector repair and maintenance
- Fire alarm installation and repair
- Freezing equipment installation and repair
- Fumigation for pest control, other than for agriculture, horticulture and forestry
- Fur care, cleaning and repair
- Furnace installation and repair
- Furniture maintenance
- Furniture restoration
- Harbour construction
- Hardscaping services
- Heating equipment installation and repair
- Housekeeping services [cleaning services]
- Hydraulic fracturing services / fracking services
- Information technology consultancy relating to installation, maintenance and repair of computer hardware
- Installation and repair of air-conditioning apparatus
- Installation and repair of flood protection equipment
- Installation of doors and windows
- Installation of utilities in construction sites
- Installation, maintenance and repair of computer hardware
- Interference suppression in electrical apparatus
- Irradiation of medical instruments
- Irrigation devices installation and repair
- Jewellery cleaning / jewelry cleaning
- Jewellery repair services / jewelry repair services
- Joinery services [repair of woodwork]
- Kitchen equipment installation
- Knife sharpening
- Laundering
- Laying of artificial turf
- Laying of cable
- Leather care, cleaning and repair
- Linen ironing
- Machinery installation, maintenance and repair
- Maintenance of passenger lifts via remote monitoring systems / maintenance of passenger elevators via remote monitoring systems
- Masonry
- Mining extraction
- Mobile telephone battery charging services / cell phone battery charging services
- Motor vehicle maintenance and repair
- Natural gas refuelling services for motor vehicles
- Office machines and equipment installation, maintenance and repair
- Painting or repair of signs
- Painting, interior and exterior
- Paper hanging / wallpapering
- Passenger lift installation and repair / passenger elevator installation and repair
- Pest control services, other than for agriculture, aquaculture, horticulture and forestry
- Photographic apparatus repair
- Pier breakwater building
- Pipeline construction and maintenance
- Plastering
- Plumbing
- Pressing of clothing
- Providing construction information
- Providing information relating to repairs
- Pumicing
- Pump repair
- Quarrying services
- Re-tinning
- Rebuilding engines that have been worn or partially destroyed
- Rebuilding machines that have been worn or partially destroyed
- Refilling of gas cylinders used for making carbonated beverages
- Refilling of ink cartridges
- Refilling of toner cartridges
- Renovation of clothing
- Rental of battery chargers
- Rental of bulldozers
- Rental of cleaning machines
- Rental of construction equipment
- Rental of cranes [construction equipment]
- Rental of dish drying machines
- Rental of dishwashing machines / rental of dishwashers
- Rental of drainage pumps
- Rental of excavators
- Rental of fuel dispensing machines
- Rental of laundry washing machines
- Rental of portable power chargers
- Rental of road sweeping machines
- Rental of sterilizers for medical instruments / rental of sterilisers for medical instruments
- Repair of hand-held parasols
- Repair of orthodontic appliances
- Repair of patio umbrellas
- Repair of power lines
- Repair of security locks
- Reservation of charging stations for electric vehicles
- Restoration of musical instruments
- Restoration of printed photographs
- Restoration of works of art
- Retreading of tyres / retreading of tires
- Riveting
- Road paving
- Roofing services
- Rustproofing
- Safe maintenance and repair
- Sanding
- Sanitizing of upholstery / sanitising of upholstery
- Scaffolding
- Services of electricians
- Shipbuilding
- Shoe maintenance and repair
- Snow removal
- Spectacle repair and maintenance / eyeglass repair and maintenance
- Sterilization of medical instruments / sterilisation of medical instruments
- Street cleaning
- Strong-room maintenance and repair
- Swimming-pool maintenance
- Telephone installation and repair
- Tuning of bodies for automobiles
- Tuning of musical instruments
- Tyre balancing / tire balancing
- Umbrella repair
- Underwater construction
- Underwater repair
- Upholstering
- Upholstery repair
- Varnishing
- Vehicle battery charging
- Vehicle breakdown repair services
- Vehicle cleaning
- Vehicle greasing / vehicle lubrication
- Vehicle maintenance
- Vehicle polishing
- Vehicle service stations [refuelling and maintenance]
- Vehicle washing
- Vermin exterminating, other than for agriculture, aquaculture, horticulture and forestry
- Vulcanization of tyres [repair] / vulcanization of tires [repair]
- Warehouse construction and repair
- Washing
- Washing of linen
- Window cleaning
What Class 37 does not include
Class 37 borders design (Class 42) and transformation (Class 40). Note these exclusions:
| Service | Correct class |
|---|---|
| Architectural services and construction-plan drafting | Class 42 |
| Software installation, maintenance, website hosting | Class 42 |
| Material transformation — tailoring, fabric dyeing, metal casting/plating | Class 40 |
| Food preservation and processing (for others) | Class 40 |
| Physical storage of goods | Class 39 |
The rule of thumb: building, installing or repairing is Class 37, but designing it is Class 42, transforming materials is Class 40, and storing goods is Class 39.
Who files in Class 37 in Nepal?
Class 37 is a cornerstone service class for Nepal's construction-led economy. It is filed by construction companies and contractors, civil-engineering and infrastructure firms, plumbing, electrical and painting service providers, vehicle-servicing and repair businesses, equipment-rental firms, and cleaning and laundry services. For a builder or repair chain whose name is its reputation, a registered trademark protects that brand across projects. Confirm your class with the NICE Class Finder.
How to register a trademark in Class 37
Search the register for earlier construction and repair marks, confirm Class 37 fits (and that architecture isn't really Class 42 or tailoring Class 40), prepare your mark and a precise service specification, and file with the Department of Industry. It examines, publishes for the 90-day opposition window, and registers for a renewable 7-year term. See how to register a trademark in Nepal and goods vs services in classification.
Do you need more than one class?
Often. A construction business that builds (Class 37), designs/engineers (Class 42) and sells its own building materials (Class 19) needs several classes. Because Nepal files one class per application with per-class fees, map your business first. See choosing the right class, and the neighbouring Class 36 (Financial & Insurance) and Class 19 (Building Materials).
A Nepal example
Take a Nepali construction company. Its building, road and installation work is a Class 37 service, where its brand is registered. But its architectural and engineering design is Class 42, and if it also makes and sells its own cement or bricks, those are Class 19. One construction brand can span Class 37 for building services, Class 42 for design, and Class 19 for materials — filing only in Class 37 leaves the design and materials identity exposed. For a firm whose reputation spans build and design, mapping build-versus-design is essential.
Getting Class 37 right: common mistakes
The two defining Class 37 lines are build-versus-design and repair-versus-transform. Building and installing are Class 37, but architectural and engineering design is Class 42. Repairing and maintaining an object is Class 37, but transforming materials — tailoring cloth, casting or plating metal, dyeing fabric — is Class 40, because it changes the essential nature of the material. Service businesses routinely misfile across these lines. A second common error is filing storage in Class 37 — physical storage of goods is Class 39.
A third pitfall is software work: repairing computer hardware is Class 37, but installing, maintaining or developing software is Class 42. Specify your real services precisely, so your Class 37 registration is clear, and add Class 42, 40 or a goods class where your business genuinely extends there.
Why precise Class 37 filing matters
In construction and repair, the firm's name is its reputation for reliability and safety, so a precise, early registration protects real value. Naming your real services — "building construction services", "vehicle repair", "plumbing installation" — makes the application easier to register and clearer to enforce, and keeps the boundary clean against Class 42 design and Class 40 transformation. Because Nepal is first-to-file, the date you lodge secures your priority in a booming construction sector. For a builder, contractor or repair brand, an early, precise Class 37 filing protects the name clients trust with their projects.
In short
Class 37 is the construction and repair services class — building, installing, repairing and maintaining physical things. The lines to remember: designing is Class 42, transforming materials (tailoring, metal plating) is Class 40, and storing goods is Class 39. Get that right, specify your services precisely, and file early to protect a construction, contractor or repair brand. In a booming construction sector where clients choose a firm by its reputation, an early Class 37 filing secures the name your projects are won on.
Class 37 filing checklist
- Confirm you're building, installing or repairing — designing is Class 42, transforming is Class 40.
- Check the exclusions — Class 42, 40 or 39.
- Write a precise service specification and search the register.
- Add Class 42 for design or a goods class for your own materials where relevant.
- Remember the trademark is separate from any contractor licensing.
- File with the Department of Industry and track to registration.
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Register your Class 37 trademark
Protect your construction, contractor or repair-service brand. Find your class with the NICE Class Finder, screen with the Conflict Checker, then register your trademark with our team. Talk to an IP expert if your business spans building, design and materials.
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