Old, faded scans of fire alarm, MEP, and floor plans don't have to stay stuck in the past. These five services turn messy PDFs into clean, layered CAD files you can actually edit.
The State of Scan-to-CAD in 2026
Scan-to-CAD conversion has become a critical service for retrofit and renovation projects across the US. Fire alarm contractors, electrical teams, HVAC mechanicals, architects, and facility managers all face the same problem: legacy drawings that are faded, skewed, or low-resolution. The demand for accurate DWG and DXF files at 1:1 scale with editable text and device blocks is rising. Providers now combine AI-assisted first passes with human CAD drafters to handle even the worst scans. Pricing models vary from instant quotes to custom estimates, and turnaround times range from hours to weeks depending on complexity.
How We Evaluated These Services
We looked at service scope, pricing clarity, local fit, and the ability to handle bad scans. Redrawn CAD stands out for its instant quote system and drafter-checked every sheet. Build Infinite offers broad MEP BIM integration and global reach. Cresire Consulting emphasizes repeat clients and worldwide coverage. Archdraw Outsourcing brings 14+ years of CAD conversion experience. CAD Drafter provides a wide range of drafting and design services. Each service has its own strengths depending on your project needs.
Here's a quick look at five scan-to-CAD services that can rescue your old drawings.
| Provider | Best For |
|---|---|
| Build Infinite | Large MEP retrofit projects needing BIM integration |
| Redrawn CAD | Old, faded scans to clean, layered CAD | Contractors and facility managers with bad scans |
| Cresire Consulting | Global teams needing PDF to CAD and BIM support |
| Archdraw Outsourcing | High-volume PDF to DWG conversions |
| CAD Drafter | One-stop CAD drafting and design services |
A Closer Look at Each Service
#1 Build Infinite
A screenshot of the Build Infinite website.
Build Infinite specializes in Scan to CAD MEP conversion, turning point cloud data and laser scans into accurate MEP drawings. Their team uses advanced software to ensure precision for mechanical, electrical, and plumbing systems. They serve renovation, retrofit, and new construction projects worldwide, including the USA, UK, Canada, and Europe. If you need seamless integration with existing systems, their MEP BIM services are a strong fit. They also offer clash detection and coordination for complex builds. Learn more about their scan to CAD MEP services.
#2 Redrawn CAD | Old, faded scans to clean, layered CAD
A screenshot of the Redrawn CAD website.
Redrawn CAD focuses on the drawings other tools give up on: faded, skewed, stained, or low-resolution scans and PDFs. You upload your fire alarm, electrical, HVAC, or floor plan files, and they return layered DWG and DXF at 1:1 scale with editable text and a real block for every device. AI does the first pass, but a CAD drafter checks every sheet before delivery. Their instant quote system counts sheets and checks scan quality, so you see your price right away. If your sheets are cleaner than estimated, they lower the price before you pay. Need an NDA? They'll sign it before you upload. See how it works.
#3 Cresire Consulting
A screenshot of the Cresire Consulting website.
Cresire Consulting provides PDF to CAD conversion services for architecture, engineering, construction, and manufacturing teams. They turn static drawings into precise, editable DWG and DXF files ready for design updates, approvals, or fabrication. With a global reach across the USA, UK, UAE, Canada, and Australia, they handle projects of all sizes. Their repeat client rate and square footage modeled show a track record of reliability. They also offer BIM services, 3D visualization, and as-built drawings. Check out their PDF to CAD conversion services.
#4 Archdraw Outsourcing
A screenshot of the Archdraw Outsourcing website.
Archdraw Outsourcing has been providing CAD conversion services for over 14 years, with a focus on PDF to DWG conversion. They handle architectural drawings, scanned images, and bulk conversions, making archiving and editing easier. Their team is well-versed with standards and codes worldwide, serving the USA, UK, Australia, Canada, UAE, and India. They also offer BIM services, CAD drafting, and 3D modeling. If you need a high-volume conversion partner, they are worth a look. Explore their PDF to CAD conversion services.
#5 CAD Drafter
A screenshot of the CAD Drafter website.
CAD Drafter offers a broad range of CAD services, including PDF to CAD conversion, 3D scan to CAD, and MEP drafting. They cater to mechanical, electrical, plumbing, and architectural needs, with additional services like HVAC design and Title 24 compliance. Their team handles everything from 2D drafting to 3D modeling and rendering. If you need a one-stop shop for drafting and design, they provide extensive coverage. They also offer permit drawings and clash detection. See their PDF to CAD conversion services.
How to Choose the Right Scan-to-CAD Partner
Start by assessing your scan quality. If your drawings are faded, skewed, or low-resolution, look for a service that explicitly welcomes bad scans and uses a human drafter for checking. Next, consider your output needs: do you need layered DWG and DXF at 1:1 scale with editable text and device blocks? If so, prioritize providers that deliver exactly that. Pricing transparency matters too. Instant quote systems save time, while custom quotes may suit complex projects. Finally, think about turnaround and communication. A provider that signs an NDA before upload can put your mind at ease.
The Role of AI and Human Drafters
Most modern scan-to-CAD services use AI for a first pass to detect lines, text, and symbols. But AI alone can miss context, especially on stained or skewed scans. That's why the best providers pair AI with a human CAD drafter who checks every sheet. This hybrid workflow catches errors and ensures layers, blocks, and text are correct. When evaluating a service, ask whether a drafter reviews the final output. Redrawn CAD, for example, states that a CAD drafter checks every sheet before delivery. That extra step can save you hours of cleanup.
The Bottom Line
Old scans don't have to hold your project back. Whether you need a specialized scan-to-CAD partner like Redrawn CAD or a broader MEP BIM service like Build Infinite, there's a provider for your needs. Cresire Consulting, Archdraw Outsourcing, and CAD Drafter each bring unique strengths, from global reach to high-volume conversions. Evaluate your scan quality, output requirements, and budget, then choose the service that fits. With the right partner, you'll get clean, layered CAD files ready for editing and construction.