At MD Sewer & Plumbing, I know it can be tempting to try and tackle plumbing repairs on your own to save a little time or money. But as a family-owned company with over 35 years of experience serving Pasadena and surrounding communities, I’ve seen firsthand how a small “quick fix” can turn into a big, costly plumbing problem.
Some plumbing issues might seem straightforward, but they often involve complex systems, specialized tools, and safety considerations that most homeowners don’t have access to or experience with. When these DIY attempts go wrong, they frequently result in water damage, higher utility bills, and repairs that cost significantly more than calling a professional plumber from the start.
Maryland homeowners face unique challenges with aging plumbing systems, seasonal temperature changes, and older homes that may have outdated materials. These factors make certain plumbing repairs particularly risky for inexperienced hands.
Schedule Service Online
Get a free estimate so you know what you're signing up for
"*" indicates required fields
 For Emergency Services Call: 410-255-9300
In this post, I’ll share the top 10 plumbing repair services that Maryland homeowners should leave to licensed professionals. Each of these repairs carries specific risks that can lead to extensive property damage, safety hazards, or recurring issues that become more expensive over time.
If you’re dealing with any of these plumbing issues, schedule your service today with our licensed plumbers—we’re available 24/7 to help protect your home and your investment.
1. Leaky Faucet Repairs
A dripping faucet might seem like the most basic plumbing repair, but it’s more complex than it appears. That steady drip can waste thousands of gallons of water annually, significantly raising your utility bills. A single leaky faucet can waste over 3,000 gallons per year—enough water to take more than 180 showers.
The problem with DIY leaky faucet repairs lies in the variety of faucet types and the precision required for proper installation. Modern plumbing fixtures use different valve systems, cartridges, and sealing mechanisms. Without the right tools or knowledge, homeowners often damage internal components, strip valve seats, or install parts incorrectly.
These mistakes can lead to worse leaks, damaged plumbing fixtures, or the need for complete faucet replacement. Professional plumbers have the expertise to identify the exact cause of the leak, whether it’s a worn washer, damaged O-ring, corroded valve seat, or faulty cartridge. They also carry the proper tools and replacement parts to ensure the repair lasts.
When you notice persistent dripping, unusual noises, or reduced water flow from your faucets, it’s time to call a professional plumber who can diagnose and fix the issue correctly the first time.
2. Toilet Repair & Replacement
Toilet problems like running water, constant clogs, or hidden leaks might tempt homeowners to attempt quick fixes. However, toilets are more complex plumbing fixtures than they appear, involving precise water levels, pressure systems, and watertight seals that prevent sewage backup and water damage.
DIY toilet repairs often result in cracked porcelain, improperly seated wax rings, or loose bolts that can cause significant water damage to your bathroom floor and subfloor. A poorly installed toilet can leak sewage into your home’s structure, creating health hazards and expensive remediation costs.
Modern toilets also have water-saving mechanisms and specific flushing systems that require professional installation to function efficiently. When these systems aren’t properly calibrated, they can waste water, fail to clear waste effectively, or cause recurring clogs that become increasingly difficult to resolve.
Professional plumbers understand the intricacies of toilet installation, including proper wax ring placement, bolt tightening sequences, and water level adjustments. They can also identify when a toilet repair isn’t sufficient and replacement is necessary to prevent future issues.
Don’t wait—fix it fast with MD Sewer & Plumbing before minor toilet problems become major water damage incidents.

“IMG_7430 Main St Water Heaters-05152010f” by nffcnnr is licensed under CC BY 2.0
3. Hot Water Heater Problems
Hot water heater issues are among the most dangerous plumbing repairs for homeowners to attempt. These systems involve gas lines, electrical connections, high-pressure water systems, and temperatures that can cause severe burns or even explosions when mishandled.
Common hot water problems include no hot water production, strange noises, visible leaks, inconsistent temperatures, or rusty water. These symptoms often indicate issues with heating elements, gas valves, pressure relief valves, or internal tank corrosion that require specialized knowledge and tools to address safely.
DIY water heater repairs risk gas leaks that can cause fires or carbon monoxide poisoning, electrical hazards that can cause electrocution, or pressure-related accidents that can result in serious injuries. Additionally, improper repairs often void manufacturer warranties and may violate local building codes.
Professional plumbers have the training to work safely with gas and electrical systems, the proper equipment to test and repair components, and the expertise to determine when water heater replacement is more cost-effective than repair services. They also ensure all work meets local codes and safety requirements.
When you experience hot water problems, trust qualified plumbers to handle the diagnosis and repair safely, protecting both your family and your home.
4. Clogged Drains & Sinks
While reaching for store-bought drain cleaners might seem like an easy solution for clogged drains, these chemical products often cause more harm than good to your plumbing system. The harsh chemicals can corrode pipes, damage seals, and create toxic fumes that pose health risks to your family.
Drain clogs often have deeper causes than surface blockages. Tree roots, collapsed pipes, grease buildup, or structural issues in your plumbing system require professional equipment and expertise to identify and resolve effectively. DIY methods typically only provide temporary relief while allowing the underlying problem to worsen.
Professional drain cleaning uses specialized equipment like hydro-jetting systems, drain cameras, and snake tools designed for different types of blockages. These tools can clear stubborn clogs without damaging your pipes, identify potential problems before they become emergencies, and ensure your entire plumbing system functions efficiently.
Attempting to clear serious drain clogs with inappropriate tools can push blockages deeper into your system, crack pipes, or damage plumbing fixtures. Professional plumbers can determine the best approach for your specific situation and prevent recurring clogs.
Clear your drains today—book online in minutes with MD Sewer & Plumbing for professional drain cleaning that protects your plumbing system.
5. Garbage Disposal Repairs
Garbage disposals combine electrical systems, sharp blades, and water connections in a compact unit that can be dangerous for inexperienced repair attempts. Common problems include jammed blades, motor humming without grinding, leaks around the unit, or complete electrical failure.
DIY garbage disposal repairs risk electrical hazards from water and electricity mixing, cuts from sharp blades, or damage to the disposal mounting system that can cause leaks under your sink. Many homeowners also don’t realize that garbage disposals connect to specific electrical circuits and may require GFCI protection for safety.
Professional repair services can safely diagnose electrical issues, clear jams without damaging blades, replace worn seals, or determine when disposal replacement is necessary. They also understand the proper installation techniques that prevent leaks and ensure the unit operates efficiently.
Attempting repairs on a garbage disposal without proper knowledge can damage the unit beyond repair, create electrical hazards, or cause water damage to your kitchen cabinets. Professional plumbers have the tools and expertise to handle these repairs safely while preventing further damage to your entire home plumbing system.
6. Sewer Line Repairs
Sewer line problems are among the most serious plumbing issues homeowners can face, with signs including foul odors around your property, recurring clogs throughout your home, or mysterious water stains in your yard. These problems require immediate professional attention to prevent sewage backup and contaminated water from entering your living spaces.
DIY sewer line repairs are virtually impossible for homeowners because they require specialized equipment like sewer cameras, hydro-jetting systems, and excavation tools. Sewer lines are also typically buried several feet underground and may run under driveways, landscaping, or other structures.
Attempting to address sewer line issues without proper equipment and expertise can result in sewage backup into your home, contamination of your property’s soil and groundwater, or extensive damage to your landscaping and hardscaping. These problems can cost tens of thousands of dollars to remediate and may pose serious health risks to your family.
Only experienced, licensed plumbers with the right equipment should handle sewer line issues. Professional sewer services include camera inspections to identify problem locations, hydro-jetting to clear blockages, and trenchless repair methods that minimize property damage while restoring your sewer system’s function.
7. Sump Pump Repairs & Installation
Sump pumps are critical for preventing basement flooding and water damage, especially in Maryland’s climate where heavy rains and seasonal flooding are common concerns. These systems must operate reliably during storms when electrical power may be compromised and water levels rise rapidly.
DIY sump pump repair often fails when you need it most because these systems require proper electrical connections, backup power considerations, and precise float switch calibrations. Improperly installed or repaired sump pumps may not activate during flooding events, leading to extensive basement damage and costly repairs.
Sump pump installation also involves considerations like proper pit sizing, discharge pipe routing, and backup system integration that require professional expertise. The pump must be sized appropriately for your basement’s water collection needs and positioned correctly to handle expected water volumes.
Professional sump pump services ensure your system will function reliably during emergencies, include proper electrical safety measures, and may include battery backup systems or water-powered backup pumps for added protection. Regular maintenance by professionals also helps identify potential problems before they result in flooding.
Protect your home from costly plumbing repairs—schedule sump pump maintenance today with MD Sewer & Plumbing to ensure your basement stays dry.
8. Pipe Leaks & Corrosion
Hidden pipe leaks behind walls, under floors, or in crawl spaces can cause extensive water damage, mold growth, and structural problems before they become visible. These leaks often start small but gradually worsen, making early professional detection and repair essential for protecting your home.
DIY pipe repairs typically involve temporary patches that don’t address the underlying corrosion or structural issues causing the leaks. Improper sealing methods can actually make leaks worse by redirecting water pressure to weakened areas of the pipe, causing additional failures.
Pipe corrosion is particularly problematic in older Maryland homes where galvanized steel or other outdated materials may be nearing the end of their useful life. Professional plumbers can assess the overall condition of your plumbing system and recommend targeted repairs or strategic replacements that prevent future issues.
Professional pipe repair involves proper materials, joining techniques, and pressure testing to ensure repairs will last. Plumbers also have leak detection equipment that can locate hidden leaks without unnecessary demolition, minimizing repair costs and property damage.
When you suspect pipe leaks or notice signs like unexplained water bills, damp spots, or musty odors, a professional plumber is essential to prevent extensive water damage and ensure proper repairs.
9. Low Water Pressure Issues
Low water pressure can result from various causes, including pipe blockages, hidden leaks, corroded plumbing fixtures, or problems with your home’s main water line. While homeowners might attempt “quick fixes” like cleaning aerators or adjusting valve handles, these approaches rarely solve the underlying problem.
Comprehensive water pressure diagnosis requires professional equipment to test pressure at multiple points in your system, identify restriction locations, and determine whether problems originate in your home’s plumbing or the municipal water supply. This diagnosis is essential for implementing effective solutions.
DIY attempts to increase water pressure by adjusting pressure regulators or removing flow restrictors can actually damage your plumbing system by creating excessive pressure that causes pipe failures, fixture damage, or increased water waste. Professional adjustments ensure your system operates within safe parameters.
Our comprehensive range of plumbing services ensures your water pressure is restored efficiently through proper diagnosis, targeted repairs, and system optimization. We can identify whether your low pressure stems from mineral buildup, pipe corrosion, valve problems, or other issues that require specific solutions.
10. Whole-House Plumbing System Repairs
Many Maryland homes were built decades ago with plumbing materials and designs that are no longer optimal for modern water usage and efficiency standards. Aging homes often have galvanized steel pipes, outdated fixture connections, or insufficient pipe sizing that creates system-wide problems.
Whole-house plumbing repairs involve complex interactions between water supply lines, drainage systems, venting, and fixture connections that require a comprehensive understanding of plumbing codes and system design principles. DIY approaches to system-wide issues typically create more problems than they solve.
Professional system evaluation includes assessing pipe materials, joint integrity, fixture compatibility, and overall system capacity to handle your household’s water needs. This evaluation helps prioritize repairs and replacements to maximize system efficiency and prevent recurring issues.
System-wide repairs and replacements require expert installation to ensure proper pipe sizing, adequate venting, code compliance, and coordination with other home systems like heating and electrical. Professional installation also includes proper permits and inspections that protect your investment and ensure safety.
Experience the difference of family-owned service—your local, trusted plumber since 1989. MD Sewer & Plumbing has the expertise to handle comprehensive plumbing system upgrades that improve your home’s efficiency, reliability, and value.

Photo by Emily Morter on Unsplash
Frequently Asked Questions
How do I know when a plumbing problem requires professional help?
Call a professional plumber when you encounter problems involving gas lines, electrical connections, main water lines, or when DIY attempts have made the problem worse. Signs like sewage odors, no hot water, multiple drain backups, or visible water damage always require professional attention.
What should I do in a plumbing emergency while waiting for the plumber?
Turn off the main water supply if there’s flooding, avoid using electrical appliances near water, and don’t attempt temporary repairs that might make the problem worse. Clear the area around the problem and take photos for insurance purposes if significant damage has occurred.
How can I prevent common plumbing problems?
Schedule regular maintenance with professional plumbers, avoid putting grease or inappropriate items down drains, replace old supply lines before they fail, and address small problems before they become emergencies. Professional inspections can identify potential problems early.
Are there any plumbing repairs homeowners can safely do themselves?
Simple tasks like replacing toilet flappers, cleaning aerators, or plunging minor clogs are generally safe for homeowners. However, anything involving pipe modifications, gas connections, electrical work, or major fixture installation should be left to professionals.
Helpful Resources and Links
Here are six resources to assist you with plumbing repair services and gaining further knowledge related to this topic:
American Society of Plumbing Engineers (ASPE)
Explore technical plumbing resources and industry standards for professional guidance. Visit ASPE
Angi Plumbing Services
Find reliable plumbing professionals in your local area through Angi’s trusted listings. Check Angi Plumbing Services
HomeAdvisor Plumbing Resource
Access tips, DIY guides, and connect with licensed plumbing experts for repairs or installation. Visit HomeAdvisor
Plumbing-Related Tutorials on YouTube
Watch step-by-step video guides covering various plumbing repairs and maintenance. Explore Plumbing Tutorials
EPA WaterSense Program
Learn about water-saving practices and environmentally friendly plumbing products. Discover WaterSense
MD Sewer and Plumbing’s Website
We at MD Sewer and Plumbing share valuable articles, content, and offer recommendations. Be sure to check their online resources for support! Find our contact information and explore our services here!
These links and resources can empower you to handle minor plumbing issues or find professional help when needed.
Trust the Experts for Lasting Solutions
Some plumbing repairs might seem like simple quick fixes, but they often lead to bigger plumbing problems, higher costs, and extensive water damage when handled improperly. The complexity of modern plumbing systems, combined with safety considerations and code requirements, makes professional expertise essential for lasting solutions.
With over 35 years of serving Pasadena and surrounding communities, we’ve seen it all—and fixed it all. Our experienced team understands the unique challenges Maryland homeowners face, from aging plumbing systems to seasonal weather impacts that can stress your home’s plumbing.
Professional plumbing services provide the expertise, specialized equipment, and warranties that protect your home and your family. When you choose MD Sewer & Plumbing, you’re choosing proven reliability, honest pricing, and the peace of mind that comes from working with licensed professionals who stand behind their work.
Don’t risk costly mistakes or safety hazards with DIY plumbing repairs. Schedule your service today for expert solutions that last.
Schedule Your Service Today — Contact MD Sewer & Plumbing for reliable, professional plumbing repair services.
Request Your Estimate — Get transparent pricing for your plumbing needs with no hidden fees or surprises.
Call Now — Technicians Available 24/7 — (410) 255-9300 for emergency plumbing services when you need them most.